please help me in this mathematics questionplease help me in this mathematics questionplease help me in this mathematics question
Answers
The twenty units of potatoes illustrates the measure of central tendency and probability
The modal weight, mean, and medianStart by sorting the dataset:
0.19; 0.28; 0.55;
0.62; 0.68; 0.77;
0.88; 0.89; 0.98;
0.99; 1.11; 1.22;
1.22; 1.22; 1.33;
1.44; 1.48; 1.68;
1.77; 1.99
The highest occuring element is 1.22 with a frequency of 3
The two middle elements are 0.99 and 1.11.
The mean of these two middle elements is: 0.5 * (0.99 + 1.11) = 1.05
The mean of the whole dataset is:
Mean = (0.19+ 0.28+ 0.55+ 0.62+ 0.68+ 0.77+ 0.88+ 0.89+ 0.98+ 0.99+ 1.11+ 1.22+1.22+ 1.22+ 1.33+ 1.44+ 1.48+ 1.68+1.77+1.99)/20
Mean = 1.06
Hence, the modal weight is 1.22, the mean is 1.06, and the median is 1.05
The probabilities(a) at least 1.1 kg
There are 10 potatoes that weigh at least 1.1 kg.
So, the probability is:
P = 10/20
P = 0.5
(b) more than 3.5kg
There are 0 potatoes that weigh more than 3.5 kg.
So, the probability is:
P = 0/20
P = 0
(c) below 0.50kg
There are 2 potatoes that weigh below 0.50 kg.
So, the probability is:
P = 2/20
P = 0.1
The Variance of the weight.
This is calculated as:
Var = \(\sum\)(x - mean)^2/n
This gives
Var = [(0.19 - 1.06)^2 + (0.28 - 1.06)^2 + (0.55 - 1.06)^2 + (0.62 - 1.06)^2 + (0.68 - 1.06)^2 + (0.77 - 1.06)^2 + (0.88 - 1.06)^2 + (0.89 - 1.06)^2 + (0.98 - 1.06)^2 + (0.99 - 1.06)^2 + (1.11 - 1.06)^2 + (1.22 - 1.06)^2 + (1.22 - 1.06)^2 + (1.22 - 1.06)^2 + (1.33 - 1.06)^2 + (1.44 - 1.06)^2 + (1.48 - 1.06)^2 + (1.68 - 1.06)^2 + (1.77 - 1.06)^2 + (1.99 - 1.06)^2]/20
Evaluate
Var = 0.22
This means that:
The expectation of the squared deviation of the random variable from the mean is 0.22 kg
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Answer:
0.22 kg
Step-by-step explanation:
Related Questions
Acelus
AABC-AQRS
Find the missing side length, m.
Source
10
А
2
m = [?]
![AcelusAABC-AQRSFind the missing side length, m.Source102m = [?]](https://i5t5.c14.e2-1.dev/h-images-qa/contents/attachments/XwXPvbdDS2QtugKjV07N3LPTPAvVIqN3.png)
Answers
Answer: m=5
Step-by-step explanation:
Because the triangles are similar, AC/QS = AB/QR
Substituting in the given side lengths,
2/4 = m/10
1/2 = m/10 -> m=5
Luis and Jasmine are making scale drawings of the front of their school for an art contest. Luis uses the scale 3 in. to 10 ft. Jasmine uses the scale 5 in. to 20 ft. The tree in front of the school in Luis's drawing is 7.5 inches tall. How tall is the tree in Jasmine's drawing?
Answers
The height of the tree in Jasmine's scale drawing is 6.25 inches.
What is the height of the he tree in Jasmine's scale drawing?A scale drawing is a smaller version of a larger image or drawing. The scale drawing is usually reduced at a constant dimension
Scale of the drawing = original dimensions / dimensions of the scale drawing
The first step is to determine the original height of the tree:
Height of the tree from Luis' scale drawing = (7.5 x 10) / 3 = 25 ft
Height of the tree in Jasmine's scale drawing = (5 x 25) / 20 = 6.25 inches
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●
Jamie went out to her grandfather's farm.
Her grandfather has pigs and chickens on his farm.
She noticed that there were a total of 26 heads and
68 feet among them. How many chickens and how
many pigs did her grandfather have?
Answers
Answer:
8 pigs
Step-by-step explanation:
Since every animal has only 1 head, a total of 26 heads suggests that there are 26 animals in total.
Suppose all animals are chickens.
Total no. of feet = 26 chickens × 2 feet
= 52 feet
Difference in total no. of feet = 68 feet - 52 feet
= 16 feet
Difference in no. of feet each animal has
= 4 feet (a pig) - 2 feet (a chicken)
= 2 feet
∴ No. of pigs = 16 feet ÷ 2 feet
= 8 pigs
if x-y = 8 and xy=5 , find x^2 + y^2
Answers
Answer:
x² + y² = 74
Step-by-step explanation:
given
(x - y) = 8 ( square both sides )
(x - y)² = 8² ← expand left side using FOIL
x² - 2xy + y² = 64 ← substitute xy = 5
x² - 2(5) + y² = 64
x² - 10 + y² = 64 ( add 10 to both sides )
x² + y² = 74
(Giving brainliest and 40 points)
Answers
Answer:
1360 m³
Step-by-step explanation:
To determine the volume of a compound 3D shape, divide the 3D shape into multiple 3D known shapes. Then, determine the volume of those "3D known shapes" and sum them up to determine the volume (figure).
In this figure, we can see two cuboids forming the figure. Therefore,
⇒ V (Figure) = V (Cuboid₁) + V (Cuboid₂)
The formula to determine the volume of a cuboid is the measure of the length, multiplied to the product of the width and the height.
⇒ V (Cuboid) = L × (W × H) or L × W × H
Therefore, the volume of cuboid₁ is;
⇒ V (Figure) = [L (Cuboid₁) × W (Cuboid₁) × H (Cuboid₁)] + V (Cuboid₂)
When we substitute the dimensions of the cuboid₁ , we get;
⇒ V (Figure) = [8 × 5 × 22] + V (Cuboid₂)
Which when simplified, we get;
⇒ V (Figure) = [880] + V (Cuboid₂)
The same should be done to cuboid₂. Therefore,
⇒ V (Figure) = [880] + [L (Cuboid₂) × W (Cuboid₂) × H (Cuboid₂)]
When we substitute the measures in the equation, we get;
⇒ V (Figure) = [880] + [8 × 5 × 12]
Which when simplified, we get;
⇒ V (Figure) = [880] + [40 × 12]
⇒ V (Figure) = [880] + [480]
⇒ V (Figure) = 1360 m³
Therefore, the volume of the figure is 1360 m³.
HELP I NEED TO TURN THIS IN SOON!! WILL GIVE BRAINLIEST!!!
Answers
Answer:
1. 2
2.6
3. 28
4. -10
Step-by-step explanation:
hope this helps
I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS BEST AND POINTS!!
:
Atul has 2/3 lb of candy. Jose has 3/5 lb and Maria has 1/2 lb less than Jose.
How many more pounds of candy does Atul have than Maria?
Answers
Answer:
ok, Im no exactly sure this is right becasue fractions aren't suppused to ever be a thing but here we go
Step-by-step explanation:
you want to get it to a same denominator.... so
2/3 times 5=10/15
3/5 times 5= 9/15
its asking about ATUL so, 10/15 divide 2=
ANSWER=5/15
hope this helped:)
Calculator What is the area of a sector with a central angle of 144° and a radius of 11 cm? Use 3.14 for π and round your final answer to the nearest hundredth. Enter your answer as a decimal in the box. cm² K
Answers
Rounding to the nearest hundredth, the area is approximately 151.976 cm².
The formula for the area of a sector is:
A = (θ/360) x πr²
where θ is the central angle in degrees, r is the radius, and π is pi (3.14).
Plugging in the given values, we get:
A = (144/360) x 3.14 x 11^2
A = 0.4 x 3.14 x 121
A = 151.976
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According to the historical data, the life expectancy in Argentina is equal to the life expectancy in Bolivia. A new study has been made to see whether this has changed. Records of 265 individuals from Argentina who died recently are selected at random. The 265 individuals lived an average of 74.8 years with a standard deviation of 4.1 years. Records of 300 individuals from Bolivia who died recently are selected at random and independently. The 300 individuals lived an average of 75.4 years with a standard deviation of 4.3 years. Assume that the population standard deviation of the life expectancy can be estimated by the sample standard deviations, since the samples that are used to compute them are quite large. At the 0.05 level of significance, is there enough evidence to support the claim that the life expectancy, μ1, in Argentina is not equal to the life expectancy, μ2, in Bolivia anymore? Perform a two-tailed test. Then fill in the table below.
Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.)
The null hypothesis: H sub 0:
The alternative hypothesis: H sub 1:
The type of test statistic:
The value of the test statistic:
The two critical values at the 0.05 level of significance:
Can we support the claim that the life expectancy in Argentina is not equal to the life expectancy in Bolivia? Yes or No
Answers
Answer:
Step-by-step explanation:
Hello!
The historical data suggests that the life expectancy in Argentina is equal to the life expectancy in Bolivia.
With the objective of testing if that it hasn't changed, the records of recently deceased people from Argentina and Bolivia were selected at random:
Group 1: Argentina
X₁: Years of life of a recently deceased Argentinian.
n₁= 265
X[bar]₁= 74.8 years
S₁= 4.1 years
Group 2: Bolivia
X₂: Years of life of a recently deceased Bolivian.
n₂= 300
X[bar]₂= 75.4 years
S₂= 4.3 years
The parameters of interest are the population means of the years of life of people in both countries:
H₀: μ₁ = μ₂
H₁: μ₁ ≠ μ₂
α: 0.05
The statistic to use is an approximate standard deviation, and since both samples are quite large, it is valid to use the sample standard deviations in place of the population standard deviations:
\(Z= \frac{(X[bar]_1-X[bar]_2)-(Mu_1-Mu_2)}{\sqrt{\frac{S^2_1}{n_1} +\frac{S_2^2}{n_2} } }\)≈N(0;1)
\(Z_{H_0}= \frac{(74.8-75.4)-(0)}{\sqrt{\frac{16.81}{265} +\frac{18.49}{300} } }= -2.54\)
The critical values for this test are:
\(Z_{\alpha /2}= Z_{0.025}= -1.96\)
\(Z_{1-\alpha /2}= Z_{0.0975}= 1.96\)
Using the critical value approach, the decision rule is:
If \(Z_{H_0}\) ≤ -1.96 or if \(Z_{H_0}\) ≥ 1.96, reject the null hypothesis.
If -1.96 < \(Z_{H_0}\) < 1.96, do not reject the null hypothesis.
\(Z_{H_0}\) ≤ -1.96 so the decision is to reject the null hypothesis.
So with a 5% significance level, there is enough evidence to reject the null hypothesis, you can conclude that the life expectancy in Argentina is different from the life expectancy in Bolivia.
I hope this helps!
Maria and John decide to shop for furnishings for the new house. They choose items that amount to $5600.00. The store has 2 fixed installment simple interest loan options for purchasing:
Option 1: 20% down payment and financing at 5% simple interest per year for 3 years.
Option 2: no down payment and financing at 5.25% simple interest for 4 years.
Answer each of the following questions separately, showing all your work to reach each answer.
A. Which option will result in smaller finance charge (interest)? What will that finance charge/interest be?
B. Which option will result in the smaller monthly payment on this fixed installment loan? What will that monthly payment be?
C. They decide to defer any purchases and invest a $5600 bonus that Maria will be getting from work in a savings account. The APR is 21.6% compounded monthly. How much interest will they earn in 4 years?
D. They decide to defer any purchases and loan the $5600 bonus to a needy relative at 1.5% simple interest per year. How long will the term of the loan need to be if they want to earn $500 in interest (assuming the loan is not paid off early).
Answers
Answer:
A. The option that results in the smaller finance charge/interest is option 1
B. The option that will result in the smaller monthly payment is option 1
C. The interest they will earn in 4 years, I = $6,643.972
D. The time it will take for them to earn an interest of $500 by loaning $5,600 at 1.5% is approximately 5.95 years
Step-by-step explanation:
A. The simple interest, I, formula is given as follows;
\(I = \dfrac{P \times R \times T }{100}\)
Where;
P = The principal
R = The rate
T =The time given for the loan
For Option 1 the first option, we have;
Down payment = 0.2 × $5600.00 = $1,120.00
Principal = $5600.00 - $1,120.00 = $4,480.00
\(\therefore I = \dfrac{\$ 4480\times 5 \times 3 }{100} = \$672\)
For Option 2. the second option, we have;
P = $5600.00
\(\therefore I = \dfrac{\$ 5600 \times 5.25 \times 3 }{100} = \$1176\)
The option that results in the smaller finance charge is option 1
B. For option 1, the total amount = Principal + Interest
∴ The total amount remaining = $4480 + $672 = $5,152
The monthly payment = A/N
Where;
A = The total amount yet to be paid out of the loan = $5,152
N = The number of time periods = 3 × 12 = 36 months
The monthly payment = $5,152/36 = \(\$ 143.\overline{111}\)
For option 2, the total amount = Principal + Interest
∴ The total amount remaining = $5,600 + $1176 = $6776
The monthly payment = A/N
Where;
A = The total amount yet to be paid out of the loan = $6,776
N = The number of time periods = 3 × 12 = 36 months
The monthly payment = $6,776/36 = \(\$ 188.\overline{222}\)
Therefore, the option that will result in the smaller monthly payment is option 1
C. For a compound interest on a principal of $5,600 invested for 4 years in a savings account that gives an interest rate 21.6% per annum, we have;
\(A = P \times \left(1 + \dfrac{r}{n} \right)^{(n\times t)}\)
We have, using the annual rate, rather than calculating for the monthly rate;
\(A = 5600 \times \left(1 + 0.216 \right)^{4} \approx 12243.972\)
Therefore, the amount they will have in 4 years ≈ $ 12,243.972
The interest they will earn in 4 years, I = A - P ≈ $ 12,243.972 - $5,600 = $6,643.972
The interest they will earn in 4 years, I = $6,643.972
D. To earn an interest of $500 at an interest rate of 1.5%, we have;
\(500 = \dfrac{5600 \times 1.5 \times T}{100} = 84 \times T\)
From which we have;
\(T = \dfrac{500}{84} = \dfrac{125}{21} = 5\frac{20}{21} \approx 5.95\)
Therefore, the time it will take for them to earn an interest of $500 by loaning $5,600 at 1.5% is approximately 5.95 years.
Natalie borrowed money from her parents to pay for a trip.
Natalie will pay her parents in equal amounts every week until she pays back the entire amount she borrowed.
The table below shows the amount of money Natalie still owes her parents at the end of every two weeks for the first eight weeks.
Number of Weeks Natalie Has Paid,
�
w
Amount Natalie Still Owes,
�
d
0
0
$
180
$180
2
2
$
162
$162
4
4
$
144
$144
6
6
$
126
$126
8
8
$
108
$108
Part A
How much does Natalie pay her parents each week?
$
per week
Part B
Write a function that shows the relationship between the amount Natalie still owes,
�
d, and the number of weeks she has paid,
�
w.
Answers
Natalie will pay her parents $9 each week, and the initial amount she still owed was $180.
We can see that Natalie is reducing the amount she owes by $18 every two weeks.
Therefore, the amount she owes after 2 weeks is $180 - $18 = $162, after 4 weeks is $144, after 6 weeks is $126, and after 8 weeks is $108.
This means that after n weeks, the amount she still owes is:
$180 - $18n
Since she will pay the same amount each week, let's call the weekly payment P. After one week, she will owe:
$180 - P
After two weeks, she will owe:
($180 - P) - P = $180 - 2P
After four weeks, she will owe:
($180 - 2P) - P - P = $180 - 4P
After six weeks, she will owe:
($180 - 4P) - P - P = $180 - 6P
And after eight weeks, she will owe:
($180 - 6P) - P - P = $180 - 8P
We can set up an equation using the information we have:
$180 - 8P = $108
Solving for P, we get:
P = $9
Therefore, Natalie will pay her parents $9 each week, and the initial amount she still owed was $180.
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The complete question:
Natalie borrowed money from her parents to pay for a trip. Natalie will pay her parents in equal amounts every week until she pays back the entire amount she borrowed. The table below shows the amount of money Natalie still owes her parents at the end of every two weeks for the first eight weeks. How much does Natalie pay her parents each week? What is the initial amount Natalie still owes?
Week 0 = $180
Week 2 = $162
Weeks 4 = $144
Week 6 = $126
Week 8 = $108
1. A shirt, x, is discounted 20%; what is the sale price?
A. y = 2.2x
B. y = 0.8x
C. y = 1.2x
D. y = 1.02x
E. y = 0.02x
2. A family left a 20% tip after their meal. What is the final cost of their meal if the food cost x dollars?
A. y = 2.2x
B. y = 0.8x
C. y = 1.2x
D. y = 1.02x
E. y = 0.02x
3. A store adds a 120% markup to the cost of an item before selling it to the customers
A. y = 2.2x
B. y = 0.8x
C. y = 1.2x
D. y = 1.02x
E. y = 0.02x
Answers
Answer:
.8x
Step-by-step explanation:
the angel of elevation from a ball on a football field to the top of a 30 foot tall goal post 16 degree 42'. How far is the football from the base of the goal post? Round to the nearest tenth of a foot.
Answers
The football is approximately 96.4 feet from the base of the goal post.
What is tangent function?The tangent function in trigonometry is used to determine the proportion between the lengths of the adjacent and opposite sides in a right triangle. Where theta is the angle of interest, the tangent function is defined as:
tan(theta) = opposing / adjacent.
When the lengths of one side and one acute angle are known, the tangent function is used to solve for the unknown lengths or angles in right triangles. In order to utilise the tangent function, we must first determine the angle of interest, name the triangle's adjacent and opposite sides in relation to that angle, and then calculate the ratio of those sides using the tangent function.
Given, the angle of elevation is 16 degrees 42'.
That is,
Angle of elevation = 16 degrees 42' = 16 + 42/60 = 16.7 degrees
Using tangent function we have:
tan(16.7) = 30/x
x = 30 / tan(16.7)
x = 96.4 feet
Hence, the football is approximately 96.4 feet from the base of the goal post.
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}Which number is larger: -2 or -5?
Answers
Answer:
-2 is larger, -2>-5
Someone complete this. Do I shave above the line or below the line. It’s it soils or dotted.
Answers
Answer:
So this one is dotted and this here is 2 is on the line right point 3 and -1 is below the line after 2
Step-by-step explanation:
-Remember:
+solid is >= or <=
+Dotted is > or <
-Slope is -1/2 and y-intercept: 3.
Finally Select a point on one side of the line test it, and then shade itFind the price of one marker if three markers cost $18. A.) $6
B.) $54
C.) $4
D.) $3
Answers
You take $18/3 markers which gives you $6 for each marker.
Find at least ten solutions to the linear equation 1/2x + y = 5, and plot the points on a coordinate plane. What shape is the graph of the linear equation taking?
Answers
The solutions of the linear equation is
x y
-8 9
-6 8
-4 7
-2 6
0 5
2 4
4 3
6 2
8 1
10 0
the graph is a straight-line graph
How to find the solutions of the linear equationThe solutions of the linear equation is the found by substituting an x value and solve for y
the given equation 1/2x + y = 5, rearranging the equation gives
y = 5 - 1/2 x
For x = -8, y = 5 - 1/2 * -8 = 9
For x = -6, y = 5 - 1/2 * -6 = 8
For x = -4, y = 5 - 1/2 * -4 = 7
For x = -2, y = 5 - 1/2 * -2 = 6
For x = 0, y = 5 - 1/2 * 0 = 5
For x = 2, y = 5 - 1/2 * 2 = 4
For x = 4, y = 5 - 1/2 * 4 = 3
For x = 6, y = 5 - 1/2 * 6 = 2
For x = 8, y = 5 - 1/2 * 8 = 1
For x = 10, y = 5 - 1/2 * 10 = 0
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For the test, Ben knows that writing a poem will take him 30
minutes while writing a paragraph will only take him 10 minutes.
Ben will have 2 hours to complete the test. Which inequality best
matches the situation?
30x + 107 > 2
o 30+10y < 120
o 30% + 10% < 2
30% + 10y > 120
Answers
Answer:
30+10y < 120
Step-by-step explanation:
Suppose a survey indicated that the average American spends the following number of hours per week for each activity: 54 hours for sleep, 28 hours for work, 18 hours for family care, 20 hours for personal care, and 48 hours for leisure. In constructing a circle graph, how many degrees (to the nearest tenth) of the circle should be used for the “work” segment?
Answers
Work accounts for approximately 60° of the pie chart, or 15.48% of the total 360°.
How to solveTo calculate a pie chart, first, categorize the data and calculate the total.
Each slice of the pie chart represents a numerical value and has a size proportional to the value.
The sum of all the data is equal to 360°, with the total value always being 100%.
To find the percentage for each slice of the pie chart, divide the categories by the total and convert them into percentages.
Finally, calculate the degrees using the formula (Given Data/Total value of Data) × 360°.
For example, let's say we have data on sleep, work, family care, personal care, and leisure, with a total of 168 hours.
To find the percentage for each category, we can use the following calculations:
Sleep: 54/168 x 100 = 32.14%Work: 28/168 x 100 = 15.48%Family care: 18/168 x 100 = 10.71%Personal care: 20/168 x 100 = 11.90%Leisure: 48/168 x 100 = 28.57%Therefore, work accounts for approximately 60° of the pie chart, or 15.48% of the total 360°.
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Eliana loves music, especially 80's punk rock. Eliana looked at the number of songs in her itunes account and she has 6 less than 4 times her best friend. Eliana's classmate David has 3 more than double her best friend. When talking to her Social Studies teacher, Eliana found out social study teacher has 7 more than two times the number of songs in his library than Eliana. Define a variable, then write and solve an equation. If the total number of songs is 382, how many songs does Eliana, her best friend, David and her social study teacher have?
Answers
Answer
Step by step explantion:
bsf= 26
Eliana:98
SS teacher=203
David=55
Step-by-step explanation:
m= music
bsf: m
eliana:4m-6
David:2m+3
SS teacher: 2(4m-6)+7
m+4m-6+2m+3+8m-12+7
382=15m-7
7+ +7
389=15m
/15m /15m
m=26
multiply 26 to each one of them
Find the quotient.
2.2 8.58
Answers
0.256 is the quotient of 2.2/8.58
What is Division?A division is a process of splitting a specific amount into equal parts.
In division, we have different parts like dividend, divisor , remainder and Quotient.
We get quotient when we divide a number by another number.
In the given question, we have to divide two point two divided by eight point five eight
2.2/8.58
Zero point two five six
0.256
Hence, 0.256 is the quotient of 2.2/8.58
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HELP AS SOON AS POSSIBLE
Answers
The coordinates of polygon A'B'C'D' after the rotation of 180º are given as follows:
A'(0,0), B'(-5,-2), C'(-5,5), D'(0,3).
What are the rotation rules?The five more known rotation rules are given as follows:
90° clockwise rotation: (x,y) -> (y,-x).90° counterclockwise rotation: (x,y) -> (-y,x).180° clockwise and counterclockwise rotation: (x, y) -> (-x,-y).270° clockwise rotation: (x,y) -> (-y,x).270° counterclockwise rotation: (x,y) -> (y,-x).The original coordinates for this problem are given as follows:
A(0,0), B(5,2), C(5,-5), D(0,-3).
Exchanging the sign of each of the coordinates, the coordinates after the rotation are given as follows:
A'(0,0), B'(-5,-2), C'(-5,5), D'(0,3).
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Find the following measure for this figure.
Volume =
Answers
Answer:
400 cubic units
Step-by-step explanation:
The volume of a square prism is \(\dfrac{1}{3} s^2 h\). Plugging in the given values, you get:
\(\dfrac{1}{3}\cdot 10^2 \cdot 12= 400\)
Hope this helps!
Two cities whose longitudes are 10E and 20W on the equator are apart
Answers
Step-by-step explanation:
to be honest I'm not sure how to do
What does 2x + -7 equal
Answers
Answer:
uh you can't really solve for it because you need more data
Step-by-step explanation:
Hope this helps!
Chose the equation for a line that passes through (2,-3) and has a slope of m=-4 in point slope form. A y - 3 = -4(2-2) By - 2 = -3(3+4) Cy+2 = -4(2+3) Dy+3 = -4(1-2)
Answers
Answer:
Slope-intercept form: y = -4x + 5
Point-slope form: y + 3 = -4 (x - 2)
Step-by-step explanation:
If you randomly select a card from a well-shuffled standard deck of 52 cards, what is the probability that the card you select is a 3 or 5?
Answers
Answer:
3
Step-by-step explanation:
you should divide 52 by a number to get 3
60ft by 60ft wall and a mirror that’s 60ft by 20ft the mirror covers wat percent of the wall?
Answers
Answer:
okay, so we have a wall that is 60 ft. The area of the wall because the wall is a square is just side squared. So the area of the wall is \(60^{2}\), which is 30 600 square feet. The mirror is 20 ft by 60 ft. So the area of the mirror, because its a rectangle is length times width, so that's 20 a 60 so 20 x 60 is gonna give me 1200 square feet. So if we take the area of the mirror and put that over the area, the wall we get 1200 over 30 600, which reduces to one over three. So the mirror is one third the area of the wall.
Step-by-step explanation:
15% of the students in the library have brown eyes. If there are 9 students with brown eyes, How many students are in the library
Answers
Answer:
Step-by-step explanation:
Answer:
60
Step-by-step explanation:
ENGLISH
If you Multiply 9x100 you get 900 then you divide 15 divided by 900 is 60
SPANISH
Si multiplica 9x100 obtiene 900, entonces divide 15 dividido por 900 es 60
Hope this will help you
by solving the inequality 6x-7>5