Answer:
250 girls
Step-by-step explanation:
Boys = Girls
250 = Girls
Give an example of a unit rate that you have seen or used in your life recently.
The examples of unit rate are given below and this can be determined by using the definition of unit rate.
The unit rate is nothing but a ratio that represents the rate of something per unit.
Examples --
1) A car is driving at a speed of 50 kilometers per hour. The 50 km/hr represents the unit rate.
2) The cost of the potatoes is $2 per pound. The $2/pound represents the unit rate.
3) The density of a substance is 4 Kg per liter. The 4kg/lt represents the unit rate.
The product of two whole numbers is 588 and their sum is 49. What are the two numbers?
Answer:
Here is your answer. HOPE THIS HELPS YOU! STAY BLESSED.
Answer:
28,21
Step-by-step explanation:
let the numbers be x and y
x+y=49
y=49-x
xy=588
x(49-x)=588
49x-x²=588
x²-49x+588=0
\(x=\frac{49 \pm \sqrt{49^2-4*1*588} }{2*1} \\=\frac{49 \pm \sqrt{2401-2352} }{2} \\=\frac{49 \pm\sqrt{49} }{2} \\=\frac{49 \pm 7}{2} \\=\frac{49+7}{2} ,\frac{49-7}{2} \\=28,21\)
Help please being timed and I don’t get it...?
Answer:
i got you.
whats up
Step-by-step explanation:
A researcher performs three independent hypothesis tests each at the 5% significance level.
Determine the probability of observing at LEAST one Type I Error. (Round your final answer to the nearest hundredth of a percent)
The probability of observing at least one Type I Error is 16.67%.
What is probability?Probability is the likelihood of an event occurring, expressed as a number between 0 and 1. It is a measure of how likely it is that something will happen, given the conditions and information available. Probability is the foundation of statistics, which is the science of making decisions when faced with uncertainty. Probability can be used to make predictions about future events and to help us understand how likely various outcomes are.
A Type I Error, also known as a false positive, occurs when an experiment incorrectly rejects a true null hypothesis. This probability can be calculated by multiplying the probability of a Type I Error occurring in each test (0.05) three times, yielding 0.125 (or 12.5%).
We then add 1 minus that probability, which yields 0.167 (or 16.67%). In other words, the probability of observing at least one Type I Error in the three tests is 16.67%.
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Let y = 2t+ 5 be a linear function representing the distance from home for an
ant t minutes after starting out from a location near its home. What does the
number 5 represent in this function?
Answer:
5 represents the distance from the home that the ant started at.
Step-by-step explanation:
5 represents the distance from the home that the ant started at.
can someone help PLS? its Surface Area of Composite Shapes
The total surface area of the figure is 315π square feet, or approximately 988.8 square feet if we use a value of 3.14 for π.
Given information:
The cylinder is sitting on the base of the cone.
The diameter of the base is 14 feet.
The slant height of the cone is 9 feet and the height of the cylinder is 11 feet.
To find the total surface area of the figure, we need to find the surface area of the cone and the surface area of the cylinder and add them together.
The surface area of the cone:
The radius of the cone is half of the diameter, which is 7 feet.
The lateral surface area of the cone can be found using the formula:
L = πrs, where r is the radius and s is the slant height.
L = π(7)(9) = 63π square feet
The base of the cone is a circle with a radius of 7 feet, so its area is:
A = πr² = π(7²) = 49π square feet
The surface area of a cylinder:
The radius of the cylinder is also 7 feet since it shares the same base as the cone.
The lateral surface area of the cylinder is:
L = 2πrh, where r is the radius and h is the height.
L = 2π(7)(11) = 154π square feet
The base of the cylinder is another circle with a radius of 7 feet, so its area is:
A = πr² = π(7²) = 49π square feet
Total surface area:
Adding the lateral surface area and the base area of the cone and cylinder, we get:
63π + 49π + 154π + 49π = 315π square feet
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what do you think the motion is?
what are the examples that you know about?
Answer:
I think its just like speed or feelings for me
How can you changee u fraction into a decimal
Find the range of the function for the domain (-3.1.4.5) y+1
will mark brainliest
Answer:
range is 26
Step-by-step explanation:
when luke gets paid he checks his bank account and has $600 he is earning 1.5% interest per year on this account how much money has he earned in interest after one year
Answer:
Luke has earned $9 in interest after one year.
Step-by-step explanation:
To calculate how much money Luke has earned in interest after one year, we can use the formula for simple interest:
I = P * r * t
where:
I is the interest earned
P is the principal (the initial amount of money)
r is the interest rate expressed as a decimal
t is the time period in years
In this case, we have:
P = $600 (the initial amount of money)
r = 0.015 (1.5% interest rate expressed as a decimal)
t = 1 (one year)
Plugging these values into the formula, we get:
I = $600 * 0.015 * 1 = $9
Therefore, Luke has earned $9 in interest after one year.
For more help:
Here are the steps to calculate how much money Luke has earned in interest after one year:
Step 1: Identify the given information
Read the problem carefully and identify the relevant information. In this case, we are told that Luke checks his bank account and finds that he has $600 in it. We are also given that he is earning 1.5% interest per year on this account.
Step 2: Identify the formula to use
The formula for simple interest is:
I = P * r * t
where:
I is the interest earned
P is the principal (the initial amount of money)
r is the interest rate expressed as a decimal
t is the time period in years
In this case, we are given the values of P, r, and t, so we can use this formula to calculate the interest earned.
Step 3: Plug in the values
Now we can plug in the values that we identified in Step 1 into the formula from Step 2.
I = P * r * t
I = $600 * 0.015 * 1
Simplifying the right-hand side:
I = $9
Step 4: Interpret the answer
The final answer is $9, which represents the interest earned by Luke on his $600 bank account after one year.
Hope this helps, if not I'm sorry. If you need more help (or have questions) feel free to ask me! :]
HELP PLEASE NEEDED !!
Answer:
\(\sqrt[3]{125^2} \\\)= 125^2/3
125^2/3=25
So Jen is correct
A delivery person uses a service elevator to bring boxes of books up to an office. The delivery person weighs 170 lb and each box of books weighs 50 lb. The maximum capacity of
the elevator is 1460 lb. How many boxes of books can the delivery person bring up at one time?
Answer: 25.8 boxes (or 25 boxes if not allowing for partial boxes)
Step-by-step explanation: Let x = the number of boxes. Set up an inequality where the max number of pounds is 1,460. We know the weight of the delivery person, as well as the weight of one box, so
50x + 170 <= 1,460
50x <= 1,290
x <= 50/1,290
x <= 25.8 boxes
answer and show work and ill give brainliest
9514 1404 393
Answer:
(d)
Step-by-step explanation:
The area of the semicircle is ...
A = (1/2)πr²
A = (1/2)(3.14)(4 m)² = 25.12 m²
The area of the triangle is ...
A = 1/2bh
A = 1/2(12 m)(8 m) = 48 m²
Then the total area of the composite figure is ...
total area = semicircle area + triangle area
= 25.12 m² + 48 m² = 73.12 m²
_____
Additional comment
The areas of choices A-C are too small. Choice A represents the area of the full circle. Choice B represents the area of the triangle only. Choice C is completely irrelevant. Choice D is the sum of the first two choices, inappropriately using the full circle area.
You should talk to your teacher about this question. None of the offered choices is correct.
Consider parallelogram QRST below. Use the information given in the figure to find m
The missing values are
<UTQ = 41 degree
x= 1
<UQT = 47 degree
We have a parallelogram QRST.
We know that the opposite sides of the parallelogram is equal and parallel then
QR || ST
QT || SR
Then, <SRT = <RTQ (<UTQ) (alternate Interior Angle)
<UTQ = 41
Similarly, <UQT = <SRQ = 47
Now, RU = UT
2x + 1= 3
2x = 2
x= 1
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Cyril has six more than twice as many mangoes as Kubie and half as many mangoes as Maxine. If Kubie has six mangoes, then, in terms of x, how many mangoes do Cyril, Kubie, and Maxine have combined?
Answer:
(7x + 18) or 60 Mangoes
Step-by-step explanation:
Let the no. of mangoes Kubie possesses be x
So,
Cyril has mangoes = 2x + 6 ...(i)
So,
Maxine has = 2 * (2x + 6)
= 4x + 12
Given that,
Kubie has mangoes = 6
∵ The combined mangoes they have in terms of x,
= Cyril + Kubie + Maxine
= (2x + 6) + x + (4x + 12)
= 7x + 18
A.T.Q.
Cyril has = 2x + 6
∵ Cyril has mangoes = 2 * (6) + 6
= 18 mangoes
∵ Maxine has = 2 * Cyril's mangoes
= 2 * 18
= 36
Thus,
Total mangoes = Cyril + Kubie + Maxine
= 18 + 6 + 36
= 60 Mangoes
If the radius of a circle is 12cm, what is the diameter of the circle? *
Answer:
24
Step-by-step explanation:
12 + 12 =24
Hah thats all i got to say lolololol
Vertex angles. Please help me
For the given triangle the value of z = 1, y = 6, and x = 4.75.
What is geometry?One of the earliest areas of mathematics is geometry, along with arithmetic. It is concerned with spatial characteristics like the separation, shape, size, and relative placement of objects.
The value of x,y, and z will be calculated by the property states that the ratio of the median line passing from the centroid of the triangle is divided into the ratio of 1: 2.
The value of x,
( 2x - 6 ) / 7 = 1 / 2
2 ( 2x - 6 ) = 7
4x - 12 = 7
4x = 19
x = 19 / 4
The value of y,
3 / y = 1 / 2
y = 3 x 2
y = 6
The value of z,
2z / 4 = 1 / 2
4z = 4
z = 1
Therefore, the values are z = 1, y = 6, and x = 4.75.
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Identify the tables that represent linear functions
Answer:
its blurry so can't really see the numbers
Answer:
B, C, and E
Step-by-step explanation:
usa test prep, sorry if this isn't useful anymore
HELP PLEASE LOTS OF DEEZ POINTZZZ BRAINLIEST ANSWER PLEAZZZZEEEE Rewrite the following multiplication problem using the associative property and then show that both results will be the same. 1/2 x 2/3 x 4/5
Answer:
(1/2 x 2/3) x 4/5
Step-by-step explanation:
1/2 x 2/3 x 4/5 = 4/15
(1/2 x 2/3) x 4/5 = 4/15
Answer:deez
Step-by-step explanation:
Deez nts
155 divided by 12 step-by-step explanation
Answer:
Step-by-step explanation:
Step 1:
Start by setting it up with the divisor 12 on the left side and the dividend 155 on the right side like this:
1 2 ⟌ 1 5 5
Step 2:
The divisor (12) goes into the first digit of the dividend (1), 0 time(s). Therefore, put 0 on top:
0
1 2 ⟌ 1 5 5
Step 3:
Multiply the divisor by the result in the previous step (12 x 0 = 0) and write that answer below the dividend.
0
1 2 ⟌ 1 5 5
0
Step 4:
Subtract the result in the previous step from the first digit of the dividend (1 - 0 = 1) and write the answer below.
0
1 2 ⟌ 1 5 5
- 0
1
Step 5:
Move down the 2nd digit of the dividend (5) like this:
0
1 2 ⟌ 1 5 5
- 0
1 5
Step 6:
The divisor (12) goes into the bottom number (15), 1 time(s). Therefore, put 1 on top:
0 1
1 2 ⟌ 1 5 5
- 0
1 5
Step 7:
Multiply the divisor by the result in the previous step (12 x 1 = 12) and write that answer at the bottom:
0 1
1 2 ⟌ 1 5 5
- 0
1 5
1 2
Step 8:
Subtract the result in the previous step from the number written above it. (15 - 12 = 3) and write the answer at the bottom.
0 1
1 2 ⟌ 1 5 5
- 0
1 5
- 1 2
3
Step 9:
Move down the last digit of the dividend (5) like this:
0 1
1 2 ⟌ 1 5 5
- 0
1 5
- 1 2
3 5
Step 10:
The divisor (12) goes into the bottom number (35), 2 time(s). Therefore put 2 on top:
0 1 2
1 2 ⟌ 1 5 5
- 0
1 5
- 1 2
3 5
Step 11:
Multiply the divisor by the result in the previous step (12 x 2 = 24) and write the answer at the bottom:
0 1 2
1 2 ⟌ 1 5 5
- 0
1 5
- 1 2
3 5
2 4
Step 12:
Subtract the result in the previous step from the number written above it. (35 - 24 = 11) and write the answer at the bottom.
0 1 2
1 2 ⟌ 1 5 5
- 0
1 5
- 1 2
3 5
- 2 4
1 1
You are done, because there are no more digits to move down from the dividend.
The answer is the top number and the remainder is the bottom number.
Therefore, the answer to 155 divided by 12 calculated using Long Division is:12
11 Remainder
Simplify the inequality-1 + 6(-1 -3x) > -39 - 2x.
Answer:
2 > x or x < 2
Step-by-step explanation:
-1 + 6(-1 - 3x) > -39 - 2x
-1 - 6 - 18x > -39 - 2x
-7 - 18x > -39 - 2x
32 > 16x
2 > x or x < 2
the reason that x < 2 is because of the negative sign. I solved it so that x stays positive but if you solve the equation with x on the other side like -16x > -32 then when you divide by -16 it changes to x < 2
PLEASE RATE!!! I hope this helps!!
(I have verified my answer on an online calculator)
Omar wants to measure the width of a river. He marks off two right triangles, as shown in the figure. The base of the larger triangle has a
length of 64 m, and the base of the smaller triangle has a length of 31 m. The height of the smaller triangle is 19.8 m. How wide is the
river? Round your answer to the nearest meter. (The figure is not drawn to scale.)
19.8 m
River
A
31 m
64 m
?
A
m
X
Ś
Answer:
41 meters
Step-by-step explanation:
\(\frac{31}{64}\) = \(\frac{19.8}{x}\)
31x = (19.8)(64)
31x = 1267.2 Divide both sides by 31 and round
x = 41
Suppose the class sizes in high schools in a major public school district are normally distributed with an unknown population mean and standard deviation. If a random sample of 28 high school classes is taken to estimate the mean class size, use a calculator to find the t-score that should be used to find a 90% confidence interval estimate for the population mean.
Answer:
1.703
Step-by-step explanation:
The reason we try to find t score is because the sample size is below 30, meaning the sample size is small
Hence:
Step 1
We find the degree of freedom
The Degrees of freedom = Number of samples - 1
The random number of samples = 28
= 28 - 1
= 27
Step 2
Using a t score table or t score calculator, we can obtain the t score value for a 90% confidence interval and degree of freedom of 27
90% confidence interval =
10% significance level = 0.10 for two tails or 0.1/2 = 0.05 for one tail
Hence: t90 = 1.703
What is a perfect square 6^1
A perfect square refers to a number that is the result of multiplying an integer by itself. In this case, 6^1 is equal to 6.
However, 6 is not a perfect square because it cannot be obtained by multiplying an integer by itself. The perfect squares up to 6^1 would be 1^2 = 1 and 2^2 = 4.
What percent of 290 is 120?
Round your answer to the tenths place.
__________________ percent
Answer:
41.4%
Step-by-step explanation:
120/290 = x/100
290x = 120 * 100
x = 41.3793...
How many solutions does this system of equations have y = -1/3x + 7. y = -2x^3 + 5x^2 + x - 2
The system of equations has one solution.
How many solutions does this system has?To check this, we can graph the two equations of the system:
y = (-1/3)x + 7
y = -2x³ + 5x² + x - 2
On the same coordinate axis, and check how many times do the graphs intercept.
The graph can be seen in the image at the end, there you can see that there is only one intecept point. Thus, the system of equations has only one solution.
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A function and its inverse are shown on the same graph.
f(x)
x
6.
Which statement describes the relationship between the
function and its inverse?
O The slope of f¹(x) is the same as the slope of f(x).
The slope of f¹(x) is the opposite as the slope of f(x).
O The x-intercept of f¹(x) is the same as the y-intercep
of f(x).
The x-intercept of f¹(x) is the opposite as the y-
intercept of f(x).
Answer:
(c) The x-intercept of f⁻¹(x) is the same as the y-intercept of f(x).
Step-by-step explanation:
You want to know the relationship between the graphs of function f(x) and its inverse f⁻¹(x).
Inverse functionThe inverse of a function maps every y-value of the original function to its corresponding x-value. That is if you have ...
f(a) = b
then the graph of f(x) contains the ordered pair (a, b).
The inverse function will have the ordered pair (b, a). That is,
f⁻¹(b) = a
ApplicationIf an ordered pair (x-intercept) of the inverse function is ...
(P, 0)
Then there will be an ordered pair (0, P) on the graph of the original function. That point is the y-intercept, and its y-coordinate is the same as the x-coordinate of the x-intercept of the inverse function.
The x-intercept of f⁻¹(x) is the same as the y-intercept of f(x).
__
Additional comment
The graphs of the two functions are mirror images of each other across the line y=x.
<95141404393>
16 families went on a trip which cost them Rs 2,16,352. How much did each
family pay?
Given that 16 families went on a trip and the cost of the trip was Rs. 2,16,352.The amount paid by each family is to be determined by unitary method Hence each family paid Rs.13522
Now, let's solve this by using the method of unitary method. To find the cost of 1 family trip, we will divide the total cost of the trip by the number of families.2,16,352 / 16 = 13,522 So, the cost of the trip per family is Rs. 13,522.Hence, each family paid Rs. 13,522 for the trip.
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Answer:
Step-by-step explanation
1. The total cost of the trip for all 16 families is Rs 2,16,352.
2. To find out how much each family paid, we need to divide the total cost by the number of families: Rs 2,16,352 ÷ 16.
3. When we do the division, we get the result: Rs 13,522.
Now let's check if this result is correct:
1. If each family paid Rs 13,522 for the trip, then the total cost for all 16 families would be: 16 × Rs 13,522 = Rs 2,16,352.
2. This is exactly the same as the total cost given in the problem statement.
So we have shown that each family paid **Rs 13,522** for the trip
Find g(x), where g(x) is the translation 8 units left and 3 units down of f(x) = |x|
Answer:
g(x) = |x+8|-3
Explanation:
g(x)= |x|
8 units to the left is |x+8| (similarily, 8 units to the right would be |x-8|)
3 units down is - 3 (3 units up would be +3)
g(x) = |x+8|-3
In 21-23, evaluate each expression for the given valué.
21. j + (-6); j-3
22. 8-g+2; g=-10
23. 3m +5; m = -15.
Answer:
21. Since you didn't say what the value of j was. If j equal -3 then
21. −3 + (−6)
Subtract 6 from −3 to get −9.
−9
OR IF IT EQUALS 3
21. 3 + −6
Subtract 6 from 3 to get −3.
−3
22. 8 − −10 + 2
The opposite of −10 is 10.
8+10+2
Add 8 and 10 to get 18.
18+2
Add 18 and 2 to get 20.
20
23. 3 x −15 + 5
Multiply 3 and −15 to get −45.
−45+5
Add −45 and 5 to get −40.
−40
Step-by-step explanation: