Answer:
hope this helps
1. Natasha tosses four coins one after the other a) In how many different orders could heads or tails occur b) Draw a tree diagram to illustrate all the possible results. c) Explain how your tree diagram corresponds to your calculation in part a).
Answer : there are 16 different orders in which heads or tails could occur when tossing four coins
a) In tossing four coins, each coin has two possible outcomes: heads or tails. Since each coin toss is independent of the others, we can multiply the number of outcomes for each coin together to determine the total number of different orders:
Number of outcomes for one coin = 2 (heads or tails)
Number of outcomes for four coins = 2 * 2 * 2 * 2 = 16
Therefore, there are 16 different orders in which heads or tails could occur when tossing four coins.
b) Here's a tree diagram illustrating all the possible results:
H
/ \
/ \
/ \
H T
/ \ / \
/ \ / \
H T H T
/ \ / \ / \ / \
H T H T H T H T
c) The tree diagram corresponds to the calculation in part (a) because each branch of the tree represents one possible outcome for the four coin tosses. Starting from the top, we have two branches representing the first coin toss: heads (H) or tails (T). From each of these branches, we have two more branches representing the second coin toss, and so on. The total number of branches or terminal nodes in the tree diagram is 16, which matches the calculation of 16 different orders in part (a).
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(c) explain what would happen to the length of the interval if the confidence level were... (i) increased to 99% (ii) decreased to 80%
If the confidence level were increased to 99%, the width of the confidence interval increases, when decreased to 80%, the width of the confidence interval decreases.
What is confidence interval?A confidence interval provides a range of estimated values for a population parameter's real value. A confidence level is connected to confidence intervals. The width of the confidence interval grows as the confidence level increases. The width of the confidence interval reduces as the confidence level goes down.
Since the margin of error grows as the confidence level does as well, the confidence interval will be bigger. Hence it increases for 99% and decreases for 80%.
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Jerome walks 90 feet from the base of a tree and looks up The ongle from the ground to the top of the free is 33° How tall is the t.ree?
Using Pythagorean theorem, The height of the tree is approximately 47.98 feet.
What does the Pythagorean theorem mean in everyday language?According to Pythagoras' Theorem, the square of a right-angled triangle's hypotenuse side is equal to the sum of the squares of its other two sides. The three sides of this triangle are known as the Perpendicular, Base, and Hypotenuse.
tan(angle) = opposite side / adjacent side
The opposite side is the height of the tree and the adjacent side is the distance from Jerome to the base of the tree (90 feet).
tan(33) = height / 90
height = tan(33) * 90
The height of the tree is approximately 47.98 feet.
Keep in mind this is an approximation as the angle in question is not a right angle and also the unit is not given so the final result is not accurate.
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After 8 examinations, Kacey's average was 55. Her next result increased her average to 60. What was the next score?
Multiply the average by the number of exams to find total points:
8 x 55 = 440
9 x 60 = 540
The score of the 9th exam is the difference between the two totals:
540 - 440 = 100
They scored a 100
PLS HELP I AM STRUGGLING ! PLEASE IM LITERALLY BEGGING YOU!
Answer:
17 is: 48
18 is: A.) Coefficient
19 is: D
20 is: Im not completely sure but I would go with B. as it has multiple interpretations which could make it unwritable as an equation
Explain the rules for multiplication and division to convert units. How do you know when to multiply and when to divide to convert units of measurements
Answer:
The basic rule is: If you need to convert from a larger unit to a smaller unit, multiply. If you need to convert from a smaller unit to a larger unit, divide. You will make the number smaller and, as you already know, division is all about making numbers smaller.
Answer:
addiemoss23/this person wrote this NOT me, it is right btw
Step-by-step explanation:
To convert units into smaller units, multiply. When the units are smaller , you need more of them to express the same measure. To convert smaller units to larger units, divide. When the units are larger , you need fewer of them to express the same measure.
What is the expanded form for 72 cubed?
Answer:373248
Step-by-step explanation:
72^3 = 373248
Drag the tiles to thDrag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match the slopes and the y-intercepts to the lines of best fit on the scatter plots.
The rate of change is ,
and the initial value is .
The rate of change is ,
and the initial value is .
The rate of change is ,
and the initial value is .
The rate of change is ,
and the initial value is .
The rate of change is ,
and the initial value is .
Graph shows line and 7 points plotted on a coordinate plane. Line goes through (0, 3) and (5, 6). Points are approximately at (1, 3.8), (2, 4), (3, 4.5), (4, 5.5), (5, 6.1), (6, 6.1), and (7, 7).
arrowRight
Graph shows downward right slant line and 7 closed points plotted on a coordinate plane. The line from (0, 5) till (8, 0.2). Points are approximately at (1, 4.8), (2, 4), (3, 2.9), (4, 2.8), (5, 1.9), (6, 1.2), and (7, 1).
arrowRight
Graph shows line and 4 points plotted on a coordinate plane. Line goes through (0, 5) and (3, 10). Points are approximately at (1, 6.5), (1.9, 8.5), (3.1, 9.8), and (4, 12).
arrowRight
Graph shows line and 5 points plotted on a coordinate plane. Line goes through (0, 5) and (3, 0). Points are approximately at (0.8, 4), (1, 3.1), (1.6, 2.6), (1.9, 1.4), and (2.8, 0.8).
arrowRight
e correct boxes to complete the pairs. Not all tiles will be used.
Match each equation with its y-intercept.
The rate of change (slopes) and initial value (y-intercepts) are as follows:
The initial value is 20, and the rate of change is -5.The initial value is 20, and the rate of change is 4.The initial value is 15, and the rate of change is -3. The initial value is 15, and the rate of change is 5.What is a scatter plot?A scatter plot can be defined as a type of graph which is used for the graphical representation of the values of two variables, with the resulting points showing any association (correlation) between the data set.
What is a line of best fit?A line of best fit is also referred to as a trend line and it can be defined as a statistical (analytical) tool that is used in conjunction with a scatter plot, in order to determine whether or not there's any association (correlation) between a data.
By critically observing the graph which models the given data, we can logically deduce the following rate of change (slopes) and initial value (y-intercepts):
The initial value is 20, and the rate of change is -5.The initial value is 20, and the rate of change is 4.The initial value is 15, and the rate of change is -3. The initial value is 15, and the rate of change is 5.Read more on scatterplot here: brainly.com/question/6592115
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write the equation in spherical coordinates. (a) x2 + y2 + z2 = 25
The equation in spherical coordinates is ρ = 5. This equation represents a sphere centered at the origin with a radius of 5 units in the ρ direction.
To write the equation \(x^2 + y^2 + z^2 = 25\) in spherical coordinates, we need to express x, y, and z in terms of the spherical coordinates (ρ, θ, φ).
In spherical coordinates, ρ represents the distance from the origin to the point, θ represents the azimuthal angle measured from the positive x-axis in the xy-plane, and φ represents the polar angle measured from the positive z-axis.
To transform the Cartesian coordinates (x, y, z) to spherical coordinates, we can use the following equations:
x = ρ sin(φ) cos(θ)
y = ρ sin(φ) sin(θ)
z = ρ cos(φ)
Now let's substitute these equations into the given equation:
\((x^2) + (y^2) + (z^2) = 25\)
(ρ sin(φ) cos(θ))² + (ρ sin(φ) sin(θ))² + (ρ cos(φ))² = 25
ρ² (sin²(φ) cos²(θ) + sin²(φ) sin²(θ) + cos²(φ)) = 25
ρ² (sin²(φ) (cos²(θ) + sin²(θ)) + cos²(φ)) = 25
ρ²(sin²(φ) + cos²(φ)) = 25
ρ²= 25
This simplifies to:
ρ = 5
Therefore, the equation in spherical coordinates is ρ = 5. This equation represents a sphere centered at the origin with a radius of 5 units in the ρ direction.
In spherical coordinates, the equation ρ = 5 describes all points that are at a distance of 5 units from the origin, regardless of the values of θ and φ.
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What makes 3 +7 +2= +2 true?
Answer:12
Step-by-step explanation:
2+8+6(24)73=12
0.25 + 2× + 4z + 0.75y
the constant term is the one that is multiplied by a variable or letter, so in this case the constant term is 0.25
Mark sells 15 pieces of artwork. He spent a total of $175 on supplies to create the art. He sold 6 of the pieces of artwork for $70 each. The remaining pieces were sold for $85 each. Mark plans to set aside 40% of his total profit for more supplies. How much money does Mark set aside for more supplies?
Mark sets aside $404 for more supplies.
Mark spent $175 on supplies, so his total cost is $175.
Mark sold 6 pieces of artwork for $70 each, so he earned 6 * $70 = $420 from these pieces.
He sold 15 - 6 = 9 pieces of artwork at $85 each, so he earned 9 * $85 = $765 from these pieces.
His total revenue is $420 + $765 = $1185.
His profit is his revenue minus his cost: $1185 - $175 = $1010.
He plans to set aside 40% of his profit for more supplies, so he will set aside 0.4 * $1010 = $404.
Therefore, Mark sets aside $404 for more supplies.
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AB= 17 cm and BC= 12.75cm Find DB.
On a school trip the ratio of the number of teachers to the numbers of students is 1 : 15. The ratio of the number of male students to the number of female students is 7 : 5. Work out the percentage of all the people on the trip are female students. Give your answer correct to the nearest whole number
Answer: 2
Step-by-step explanation:
prefix1 while (flag[0]) do {} flag[1]=true cs1 flag[1]= false suffix1
The code snippet provided is a simple example of a mutual exclusion solution using the flag variables as a way to ensure that only one process can access the critical section (cs1) at a time.
The prefix1 and suffix1 are placeholders that do not have any significance to the functionality of the code.
In this implementation, the while loop keeps checking the value of flag[0] until it becomes false. Once flag[0] is false, the process can proceed to the critical section and execute the code within the curly braces.
Before exiting the critical section, the flag[1] variable is set to true to indicate that the process has entered the critical section. This is necessary because another process may be waiting to access the critical section, and the flag[1] variable serves as a signal to indicate that the critical section is currently being used.
After executing the code within the critical section, flag[1] is set to false to indicate that the process has finished accessing the critical section, and another process can now enter it.
Overall, this implementation is a basic form of mutual exclusion, and more complex algorithms exist to prevent deadlocks and other issues that may arise in concurrent systems.
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a sample standard deviation is the best point estimate of the a. population range b. population skewness c. population mode d. population standard deviation
The most accurate point estimate of the sample standard deviation's population counterpart is the sample standard deviation.
A parameter is a set value that is calculated from each member of the population and is known as the population standard deviation. One type of statistic is the sample standard deviation. It is therefore determined using data from a small portion of the population.In order to determine the population standard deviation, we divide the total by the number of data points (N). But in order to determine the sample deviation, the sum is divided by the number of data points minus 1. (N-1). To ascertain the standard deviation, take the square root of the final value.
The most accurate point estimate of the sample standard deviation's population counterpart is the sample standard deviation.A parameter is a set value that is calculated from each member of the population and is known as the population standard deviation. One type of statistic is the sample standard deviation. It is therefore determined using data from a small portion of the population.
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Determine the intersection, union, and complement sets from the given information.
44. U=(2, 4, 6, 8)
A = (2, 4)
B = (6,8)
a. A ∩ B =
b. AUB=
c. (AUB)' =
The intersection, union, and complement sets based on the universal set U = {2, 4, 6, 8}, are;
a. A ∩ B = {∅}
b. A ∪ B = {2, 4, 6, 8}
c. (A ∪ B)' = {∅}
What is a universal set?The universal set is the set to which the other sets are subsets, and one which contains all the elements.
The Universal set is; U = (2, 4, 6, 8)
The set A = (2, 4)
The set B = (6, 8)
Therefore;
a. The set A ∩ B is the set of elements common to both sets A and B
Therefore no elements common to both sets A and B, therefore;
A ∩ B = {∅}
b. The set A ∪ B is the set that contains elements in set A and elements in set B as well as elements in set A ∩ B
The set A ∪ B = {2, 4, 6, 8}
c. The set of the complement of the union of the set A and B is the set that contains elements that are not in the union of set A and B
A ∪ B = {2, 4, 6, 8} = U,
U' = {∅}
Therefore (A ∪ B)' = {∅}
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a certain bridge is 4,024 feet long. approximately how many minutes does it take to cross this bridge at a constant speed of 20 miles per hour? (1 mile
At a continuous speed of 20 miles per hour, it takes 2 minutes to cross this bridge.
What is a unitary approach?The unitary method is used to calculate the value of a single unit and then multiply that value by itself in order obtain the desired value. Unitary refers to a single, unique, or solitary unit. As a result,
this method's objective is to establish values in terms of a single unit. If a car can drive 44 kilometer two litres of gas, for instance, the unitary approach can be used to calculate how many kilometers it can travel on one litre of gas. The value of a single unit is determined by the unitary technique, and also the value of the required quantity of units can then be calculated using this value.
given,
0.76 miles = (4024/5280) miles
Speed =20 miles per hour
Time: =(Distance / Speed) = (0.76/20)
= 0.038 ( in hours )
into minutes = 2 min
At a continuous speed of 20 miles per hour, it takes 2 minutes to cross this bridge
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(NEED HELP ASAP!!)
What are the coordinates of the focus of the parabola?
A: (8, 6)
B: (-8, 6)
C: (-8, 2)
D: (8, 2)
Answer:
C: (-8, 2)
Step-by-step explanation:
Given parabola:
\(y=-\dfrac{1}{8}x^2-2x-4\)
For the quadratic equation in the form y = ax² + bx + c, the x-value of the vertex is -b/2a.
Therefore, the x-value of the vertex of the given parabola is:
\(\implies x=-\dfrac{b}{2a}=-\dfrac{-2}{2\left(-\frac{1}{8}\right)}=-8\)
To find the y-value of the vertex, input x = -8 into the given equation:
\(\implies y=-\dfrac{1}{8}(-8)^2-2(-8)-4=4\)
Therefore, the vertex (h, k) of the parabola is (-8, 4).
The focus of the parabola is (h, k+p) where:
(h, k) is the vertex\(p=\dfrac{1}{4a}\)Therefore:
\(\implies \textsf{Focus}=\left(-8,4+\dfrac{1}{4\left(-\frac{1}{8}\right)}\right)=\left(-8,2)\)
Robin can clean 727272 rooms in 666 days.
How many rooms can Robin clean in 999 days?
Answer:
1,090,908
Find the half of 727272,then when you find the half,add it to 727272
>727,272÷2=363,636
>727,272+363,636=1,090,908
Step-by-step explanation:
Answer:
1,090,908
Step-by-step explanation:
727,272 divided by 666=
1,092
999 - 666=
333
1,092 x 333=
363,636
727,272 + 363,636=
1,090,908
PLS HELP ANSWER WITH EXPLANATION!
Considering the given quadratic equation, it is found that the quickest way to find the maximum height is given by:
c. Complete the square.
What is the equation of a parabola given it’s vertex?The equation of a quadratic function, of vertex (h,k), is given by:
y = a(x - h)² + k
In which a is the leading coefficient.
The maximum height is at the vertex, which is found completing the squares, hence option c is correct.
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Find the Z-scores that separate the middle 56% of the distribution from the area in the tails of the standard normal distribution.
The z score that separate the middle 56% of the distribution from the area in the tails of the standard normal distribution is ±0.77.
Given that the z score separates the 56% of the distribution from the area in the tails of the standard normal distribution.
In a normal distribution in with mean μ and standard deviation σ, the z score of a measure X is as under:
Z=(X-μ)/σ
It is used to measure how many standard deviations the measure is from the mean.
After finding the z score we have to look at the z score table and find the p value associated with this z score, which is the percentile of X.
The normal distribution is symmetric which means that the middle 56% is between the 11th and 67th percentile. Looking at the z table the z scores are Z=±0.77.
Hence the z score that separate the middle 56% of the distribution from the area in the tails of the standard normal distribution is ±0.77.
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How is the graph of y = -8x2 - 2 different from the graph of y = -8x2?
O
A. It is shifted 2 units to the left.
O
B. It is shifted 2 units to the right.
C. It is shifted 2 units up.
D. It is shifted 2 units down.
Answer:
(Answer D)
Step-by-step explanation:
Please use " ^ " to indicate exponentiation: y = -8x^2 - 2, y = -8x^2
The graph of y = -8x^2 is an inverted parabola with vertex at (0, 0).
That of y = -8x^2 - 2 is the same as above, except that the whole graph has been shifted 2 units down (Answer D).
Find the unit rate for each Lean Cuisine Entree. Show your
work
Please show work worth 40 points
Answer: 60
Step-by-step explanation:10 x 6 = 60 ( Also, 6x6x6x6x6x6x6x6x6x6 = 60
one customer has two chances to receive a prize. if the customer keeps the higher of the two prizes awarded, what is the probability the customer will receive at least $100?
If the customer keeps the higher of the two prizes awarded, the probability the customer will receive at least $100 is 0.10
The probability that the customer will receive at least $100, P(X>100) is obtained below:
The probability that the customer will receive at least $100 is obtained by adding the corresponding probabilities of X=100 and, X=1000
Given from the table of probabilities, P(X=100)=0.08, and P(X=1,000)
P[X>100]=P(X=100)+P(X=1,000)
=0.08+0.02
=0.10
The question is incomplete, the complete question is given below:
A real estate developer is awarding one of four prizes to customers who view new properties. The prizes are awarded randomly through drawings. Prize values and their associated probabilities follow:
PRIZE VALUE PROBABLITY
$10 0.80
$20 0.10
$100 0.08
$1000 0.02
one customer has two chances to receive a prize. if the customer keeps the higher of the two prizes awarded, what is the probability the customer will receive at least $100?
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2. In the March 1998 issue of Great Goatee Magazine, readers could vote online for their
favorite goatee in the Pitt-Brust Bonanza. Readers could either vote for Brad Pitt or Mr. Brust. Brust's
votes equaled 2 times the sum of Pitt's votes and 400. The total number of votes received was 2012.
Model the situation with a linear system.
a.
Pitt?
Total # of votes:
Brust vs Pitt:
Let B # vote for Brust
Let P=#votes for Pitt
= 2(.
= 2012
LON BY SHged Fa
Brust?
Brust's votes equaled 2 times the sum of Pitt's votes and 400:
B = 2(P + 400), this is the first equationThe total number of votes received was 2012:
B + P = 2012, this is the second equationSolve for P by substitution:
2(P + 400) + P = 20122P + 800 + P = 20122P = 2012 - 8002P = 1212P = 606Find B:
B =2012 - 606B = 1406Answer:
a) Total # of votes: B + P = 2012
Brust vs Pitt: B = 2(P + 400)
b) 1608 = votes for Brust
404 = votes for Pitt
Brust won by 1204 votes
Step-by-step explanation:
Given variables:
Let B = the number of votes for BrustLet P = the number of votes for PittGiven information:
Brust's votes equalled 2 times the sum of Pitt's votes and 400.The total number of votes received was 2012.Create a system of linear equations using the given variable and information:
Total # of votes: B + P = 2012Brust vs Pitt: B = 2(P + 400)Substitute the second equation into the first equation and solve for P:
⇒ 2(P + 400) + P = 2012
⇒ 2P + 800 = 2012
⇒ 3P = 1212
⇒ P = 404
Substitute the found value of P into the first equation and solve for B:
⇒ B + 404 = 2012
⇒ B = 1608
Therefore:
1608 = votes for Brust404 = votes for PittTo find how many votes Brust won by, subtract the total number of votes for Pitt from the total votes for Brust:
⇒ 1608 - 404 = 1204
A researcher carried out a hypothesis test using a two-tailed alternative hypothesis. Which of the following z-scores is associated with the smallest p-value?
a. z = 0.39
b. z = 1.35
c. z = -2.38
d. z = -3.24
The smallest p-value is always associated with the z-score that is furthest away from the mean. This is because the tails of the normal distribution curve have less area and thus represent smaller p-values. The correct answer is option (d) z = -3.24.
In a hypothesis test, there are two hypotheses: the null hypothesis (H0) and the alternative hypothesis (H1).
The null hypothesis is the one we're testing, while the alternative hypothesis is the one we're trying to support or prove.
A two-tailed alternative hypothesis is one in which we are interested in whether a parameter is not equal to a certain value, as opposed to one-tailed alternative hypotheses, in which we are interested in whether the parameter is greater than or less than a certain value.
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Consider an economy described by the following equations:Answer questions 3 and 4.Y = C + I + G + X (income identity)C = 300 + 0.8Yd (consumption function)The investment is equal to $ 300 million, government expenditures (G) = $ 100 million and net exports (X) = $ 100 million and a tax rate t ("tax rate") equal to 0.2 [use the formula 1/1-b ( 1-t)]3. Equilibrium production (Y isto. 3,000b. 7,500c. 4,000and. 2,2224. The multiplier isto. 2.5b. 2,777c. 3.66d 4.50e None of the above4. If the consumption function is C = 300 +.8 (Yd), investment is $ 200, government expenditures are $ 200, t is 0.2, and X = 100 -.04Y then the equilibrium income is: [use the formula 1/1-b (1-t) + m]a. 6,000b. 7,500c. 4,000d. 2,500e 2,0005. What is the multiplier? ____Compare with the multiplier from the previous question and explain why they differ. Use the space below to answer this question.
The multiplier in this case is approximately 2.778. equilibrium income is approximately $480.45 million.
To answer questions 3, 4, and 5, we need to use the given equations and formulas to calculate the equilibrium production, multiplier, and equilibrium income.
3. Equilibrium production (Y) is determined by the income identity equation:
Y = C + I + G + X
Given:
C = 300 + 0.8Yd
I = $300 million
G = $100 million
X = $100 million
Substituting these values into the equation, we have:
Y = (300 + 0.8Yd) + 300 + 100 + 100
Simplifying the equation, we find:
Y = 800 + 0.8Yd
To find the equilibrium production, we need to know the value of Yd (disposable income), which is not given in the question. Therefore, we cannot determine the specific value for equilibrium production (Y).
4. To find the equilibrium income, we need to consider the consumption function, investment, government expenditures, tax rate, and net exports.
Given:
C = 300 + 0.8Yd
I = $200 million
G = $200 million
t = 0.2
X = 100 - 0.04Y
Using the formula for equilibrium income:
Y = 1 / (1 - b(1 - t)) * (I + G + X)
Substituting the given values, we have:
Y = 1 / (1 - 0.8(1 - 0.2)) * (200 + 200 + (100 - 0.04Y))
Simplifying the equation, we find:
Y = 1 / (1 - 0.8(0.8)) * (400 + 100 - 0.04Y)
Y = 1 / (1 - 0.64) * (500 - 0.04Y)
Y = 1 / 0.36 * (500 - 0.04Y)
Y = 2.7778 * (500 - 0.04Y)
2.7778Y = 1388.89 - 0.1111Y
2.8889Y = 1388.89
Y = 480.45
The equilibrium income is approximately $480.45 million.
5. The multiplier can be calculated using the formula:
Multiplier = 1 / (1 - b(1 - t))
Given that b (the marginal propensity to consume) is 0.8 and t (the tax rate) is 0.2, we can calculate the multiplier:
Multiplier = 1 / (1 - 0.8(1 - 0.2))
Multiplier = 1 / (1 - 0.8(0.8))
Multiplier = 1 / (1 - 0.64)
Multiplier = 1 / 0.36
Multiplier ≈ 2.778
The multiplier in this case is approximately 2.778.
Comparing the multiplier from question 4 (2.778) with the multiplier from question 3 (unknown as we couldn't determine the equilibrium production), we see that they are different. The difference in the multiplier can be due to changes in the consumption function, investment, government expenditures, tax rate, and net exports. Each of these factors can affect the multiplier and lead to different results.
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two independent, completely accidental scientific discoveries will be required to plan a space elevator. the first, negative gravity, we believe will take an average of 10 years to happen. the second, monofilament cables, we believe will take an average of 6 years to take place. a) what is the probability monofilament cables will be discovered within the next 10 years? b) what is the probability both discoveries will take place within the next 20 years?
The probability that monofilament cables will be discovered during the next ten years and that both discoveries will occur within the next twenty years are, respectively, 0.811 and 0.833.
X = time taken to discover Negative gravity
Y = time taken to discover Monofilament Cables
X follow exponential distribution with mean = 10
Y follow exponential distribution with mean = 6
a)P(Y < y) = 1- e^(-y/mean)
P(Y < 10)
= 1 - e^(-10/6)
= 0.8111
The probability monofilament cables will be discovered within the next 10 years is 0.8111
b)P(X <20 ,Y < 20)= P(X < 20)P(Y < 20)
= (1 - e^(-20/10)) (1 - e^(-20/6))
= 0.8338
The probability both discoveries will take place within the next 20 years
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Figure A is a scale image of figure B. Figure A maps to figure B with a scale factor of 0.80. What is the value of x?
Answer:
4
Step-by-step explanation:
x=5*0.8=4
Answer:
here is the answer
Step-by-step explanation:
we need to find x
therefore,
0.80*x=5 (since it is a factor of 0.80)
x= 5/0.80
x=6+1/4= 6.25 units