Mathematics Middle School

PLEASE HELP! I WILL GIVE BRAINLY!! (if u troll ill report!)

A sports medicine major wanted to conduct an experiment to determine if there is a correlation between the members of the soccer team's leg strength and the time it takes for them to sprint 40 yards. He sets up the following test and records the data:

Answers

Answer 1

Answer:

Using linear interpolation on the interval [15,23] that would be

9.5 + (22-15)/(23-15) * (11.9-9.5) = 11.6

That is, since 22 is 7/8 of the way from 15 to 23, he should produce a value 7/8 of the way from 9.5 to 11.9

Answer 2

The correct answer is 11.9

I took the test, this is my third time answering this question.

I explained everything but all got erased, anyways the answer is 11.9

Related Questions

* 5 STARS + 20 PTS + THANKS * please answer the question below ASAP!

Answers

400in because there is 4 sides and each one is worth 100

Answer:

V = 8000in^3

Step-by-step explanation:

Replace s with 20 and solve the equation

V = 20^3

Calculate 20 to the power of 3 and get 8000.

V=8000

Which simplified ratio correctly compares 12 yards to 20 feet?
A. 3:5
B. 5:9
C. 5:3
D. 9:5

Answers

The answer is letter c

The manager of fast food restaurant collected data to study the relationship between the number of employees working registers and the amount of time customers waited in line to order. He made a scatter plot of the data and credited a trend line with the equation y= -70x+300, where y is the total amount of time waited in seconds and x is the number of employees working registers.
1. Did the scatter plot of data positive, negative, or no association? Explain your reasoning.
2. Maria went to the restaurant and waited 90 seconds to place her order. Use the trend line equation to predict how many employees were working.
3. Kiara went to the restaurant and waited 3.5 minutes. Use the trend line to predict how many employees are working.
4. Ashton walked into the restaurant and 4 employees are working registers. Use the trend line equation to predict how long he will wait to place his order.

Answers

Answer:

Step-by-step explanation: "no association because depending on how many people are working and how many people are coming in at the same tome"

You have $30 to spend on in-app purchases for a game. Sets of extra lives cost $3 each, and bags of coins cost $5 each. You buy a total of 8 items in the game. How many sets of extra lives and bags of coins do you buy?

Answers

Answer: The answer is B which is 5 sets of Extra lives and 3 bags of coins

Step-by-step explanation:

1) Work out all the answers from a,b,c,d and b are exactly 30 dollars and 8 items.

2)I used trial and error due to the fact that there are 4 options.

Answer: hope this helps ♡

B) 5 sets of extra lives and 3 bags of coins

Step-by-step explanation:

Money = $30

A) 3 sets of extra lives = $9 5 bags of coins = $25 9+25 = 34 (34>30)

B) 5 sets of extra lives = $15 3 bags of coins = $15 15+15 = 30 (30=30)

HELP! i only need the 2 middle ones (the ones that are stared)!

Answers

hey this is what i got, for the model, (if you cant read some stuff ask me sorry its small )
For the second one,
The model can be used to determine the value the X by showing where 1
snow-cone matches up with the price of $3.25.

Sid has a baseball cap collection. 65% of his caps have sports team symbols. If 26 of the caps have the team symbols, how many total caps does Sid have?

39
40
73
91

Answers

B. 40

As we know Sid has 26 Caps

we also know that 26 is 65% of total

so let total caps = x

to calculate x

we know that percent = (Values*100)/total Values.......... i

and here Value = 26 caps

percentage = 65

So we have

65 = (26*100)/x---------------- (As we know that per = fraction*100)..... from i

65x= 2600x = 2600/65x=40 caps

Hence Answer is 40

Learn more about percentages: https://brainly.com/question/24877689

B. 40 because the way I found it which was weird was I figured out which number had 26 out of 65%. Which is 40.

Every New Year's Day, Jennifer brings 13 candies for each of her grandchildren and 20 more candies for the adults to share.
Let g represent the number of Jennifer's grandchildren and c represent the total number of candies she brings.

Find the value of c when g=9.

Answers

Answer:

We can use the given information to set up a system of two equations:

c = 13g + 20

c - 13g = 20

The second equation is obtained from the first equation by subtracting 13g from both sides.

To solve this system, we can use substitution.

First, we solve the second equation for c.

c = 20 + 13g

Then, we substitute this expression for c into the first equation.

20 + 13g = 13g + 20

Then, we simplify.

20 = 20

So, the value of c when g = 9 is 20 + 13 * 9 = 20 + 117 = 137.

Step-by-step explanation:

C=137 because if you use the equation 13(7) + 20 you will get 137 candies.

Help me find the answer to this please!!

Answers

Answer is y=6x

Explanation

When you have a graph, you can find the slope or coefficient next to x, by finding rise over run on the graph or using slope formula.

On the graph, from 0, 0, we go up or rise +6 and go right or run +1. Slope is 6/1 or 6.

Or, you have (0, 0) and (1, 6) as two definite points. Using slope formula
y2 - y1 over x2 - x1

6 - 0 over 1 - 0 = 6/1 or slope of 6.

Y=6x I think. Have a good day

Similar figures review 2

Answers

Answer:

a) 48.28 inches

b) 12.5

c) 7.2 cm

d) 16

Hope It Helps!

Please Mark Me Brainliest!

a) 48.28 inches

b) 12.5

c) 7.2 cm

d) 16

Please help me w/ this question!

Answers

Answer:

Step-by-step explanat

Basically to solve this answer you just have to plug in Jamie’s brothers amount of tickets (x) into the equation

So with the first number (40) I would plug it into the equation

3(40)+2 -which is equivalent to 122

So this is how the chart would be filled out

Jamie’s brothers. 32

helpppppppppp fastttttttttttttttttttttttttt

Answers

Answer: 8 x 6

Step-by-step explanation 8 x 6

because both integers meet at 8 horizontally, ND 6 VERTICALLY. THEREFORE THE ANSWER IS 8 X 6

The answer is 8x6 hope it’s correct

Which set of numbers includes only integers?

A.Negative 5, negative 3 and one-fourth, 1, one-eighth
B.Negative 3, negative 2, 2, 3
C.Negative 6, negative 4, negative 2, negative one-half
D.One-half, two-thirds, StartFraction 6 Over 7 EndFraction, 0

Answers

Answer:

Gonggong answer munaman Yan ehh

B, integers basically mean whole numbers and B only contains whole numbers

What are numbers that cannot be divided by 5 without a remainder?

Answers

105, 275, 315, 420, 945, 760

Hope this works

105,275,315,420,945,760

Write your question here (Keep it simple and clear to get the best answer)

Answers

(-3,-5)

The length of the diagonal of the rectangle is 10 units.

PLEASE HELP! I WILL GIVE BRAINLY ALSO SUMMARIZE!! (if u troll ill report!)
A sports medicine major wanted to conduct an experiment to determine if there is a correlation between the members of the soccer team's leg strength and the time it takes for them to sprint 40 yards. He sets up the following test and records the data:

Answers

Answer:

The time for 22 leg-press reps is 11.9 seconds.

Step-by-step explanation:

The lines of best fit is the trend line of the dataset.

The equation of line of best fit is y = 0.120x + 9.274The time for 22 leg-press reps is 11.9 seconds(A) The equation of the line of best fit

The table is given as —

(x) : 12 32 7 26 28 15 1

(y) : 8.6 14.6 7.1 8.3 11.9 19.4 9.5

To determine the equation of line of best fit, we make use of a regression calculator.

Enter the above dataset in a regression calculator, the equation is: y = 0.120x + 9.274 (Approximated to Three Decimal Places / Rounded of to the Thousandths Place)

(B) The number of seconds for 22 leg-press reps

This means that x = 22.

So, we have:

y = 0.120 * 22 + 9.274

= 2.640 + 9.274

= 11.914

(Approximate to the nearest hundredths)

= 11.9

Hence, the time for 22 leg-press reps is 11.9 seconds.

Hope my answer helps you.

Please mark my answer as the BRAINLIEST. Plssssssssssssssssssss

To make iced coffee, Sara puts her hot coffee into a refrigerator when it’s temperature is at 130 ℉ . The temperature of the coffee drops 4 ½ ℉ each hour. What is the temperature of the coffee after 5 hours?

PLEASE HELP I’M CONFUSED

Answers

To solve this all you need to do is multiply 4 1/2 x 5 and then subtract the Sun by 130°F. So 4 1/2×5 equals 22.5. 130-22.5=107.5. so the temperature of the coffee after five hours is 107.5°F.

If the coffee starts a 130 degrees and it cools if 4 1/2 degrees an hour and is in the fridge for 5 hours so 5 X 4 1/2 and that equals 22 1/2 so you would subtract 130 by 22 1/2 which would equal 107 1/2 degrees or 107.5 degrees

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.

The coordinate plane shows the positions of different places in a town. Each unit on the graph is equal to 1 block. Match the paths with their distances.

13 blocks
9 blocks
7 blocks
16 blocks
10 blocks

from school to the supermarket
from the park to the supermarket
to the baseball field
from home to the baseball field
from home to the park
to the supermarket

Answers

Answer:

a) 7 blocks

b) 16

c) 10

d) 13

The average daily temperature in a city is 55° in May. The average daily temperature in that same city is −3° in December. Which of the following represents the difference in degrees of these average temperatures? |55| − |−3| = 52° |55| + |−3| = 58° 55|−3| = 52° |−55| − |−3| = 58°

Answers

Answer:

-3°

Step-by-step explanation:

Answer #2 or 58 degrees

HELP ME PLEASE W/QUESTION

Answers

Answer:No matter what, the wind doesn't go to the volcanic areas.

Step-by-step explanation: notice that no matter what time, the wind never goes near the volcanoes. thats because the heat is pushing it away.

…._______________\________________________……\\\\\\\\_____

Tell whether ratios form a propotion
1/4; 3/12
54/10; 81/15
18/24; 15/20
someone help me pls:(

Answers

Answer: Ratios form a proportion if they are equal when cross-multiplied.

1/4 and 3/12

Cross-multiply these ratios to compare them: 1/4 * 12 = 3, 3/12 * 4 = 3.

So they are equal and form a proportion.

54/10; 81/15

Cross-multiply these ratios to compare them: 54/10 * 15 = 81, 81/15 * 10 = 54.

So they are equal and form a proportion.

18/24; 15/20

Cross-multiply these ratios to compare them: 18/24 * 20 = 15, 15/20 * 24 = 18.

So they are equal and form a proportion.

Hence, all the ratios mentioned above form a proportion.

Step-by-step explanation:

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Make a the subject of the formula:
2a+9b=4c

Answers

I think this is correct a=2c- 9/2b

Answer: 9b-4c=2a

Change from addition to subtraction problem to make 2a the answer.

It costs $7.50 to enter a petting zoo. Each cup of food to feed the animals is $2.50. If u have $12.50, how many cups can u buy?

Answers

Answer:

exactly 2 cups

Step-by-step explanation:

hope this helps

Answer:

12.50 - 7.50 = 5

2.50 × x = 2.5

so 2 cups

A student simplified the expression 6^2/36^2 as 1/3. Do you agree with this student?

Answers

Answer:

yes

Step-by-step explanation:

the math adds up to 1/3.

No

6^2= 36
36^2= 1296

36/1296 = 1/36

please answer this question below, will be giving heart and five stars!

Answers

Answer:

Step-by-step explanation:

area of a circle - formula is πr²

using 3.14 for pi and the problem states the radius is 1.5.

3.14 × 1.5²

3.14 × 2.25 =

7.065 sq ft.

The table below shows the ratio of materials in a composting container.

Brown Material (gallons) 12.75 18.6 24 E
Green Material (gallons) 4.25 B D 11.5
Total (gallons) A C 32 46

If Jeremy needs 64 gallons of compost to plant his garden in the spring, how much brown material will he need? How much green material will he need?
Jeremy will need 52 gallons of brown material and 12 gallons of green material.
Jeremy will need 16 gallons of brown material and 48 gallons of green material.
Jeremy will need 12 gallons of brown material and 52 gallons of green material.
Jeremy will need 48 gallons of brown material and 16 gallons of green material.

Answers

Answer:

Step-by-step exp6lanation:

(465+235+286)-89 equals?

Answers

Pemdas means you have to do the parentheses first.
465+235+286=986
Then comes the subtraction
986-89=897

So the answer is 897

Answer: 897

Step-by-step explanation:

(465+235+286)-89= ?

(700 + 286)-89

986-89

897

Please help with this question

Answers

Answer:

-look below!

Step-by-step explanation:

equation: s=3+4 s=sister

process: you would add 3 to 4 which is 7, the age of Raymond’s sister.

Raymond’s sister is 7 years old.

7 years old is the answer 3+4

Can anyone help with this?

Answers

Answer: I would say B is correct

Step-by-step explanation:

You should choose b as the answet

Help plssss.........

Answers

Answer: He has made $72 this week

Step-by-step explanation:

We can set up the equation of Y = 9x where Y is how much he made and X is how many hours he worked.

We can simply plug in 8 hours for x to get Y=9(8) where Y=72.

write answers only pleaseeeeeeeeeeeeeeeeeeeeeeee fasttttttttt

Answers

Answer:

4(x-1)+9=17 answer only

the third one down 4(x+1)+9=17

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