Mathematics Middle School

The table shows how the cost of a tractor repair depends on the time needed for the repair.

Repair time Cost
(hours ) (dollars)
ーーーーーーーーーー
2 I 180

5 I 450

? I 630

10 I 900

20 I 1,800


Which expression can be used to find the number that is missing from the third row of the table?


A. 450➗5

B. 630➗7

C. 450➗90

D. 630➗90

Answers

Answer 1

Answer:

im stupid so im gonna need more info

Answer 2
the answer is definitely D :)

Related Questions

The questions are on the pictures ( I’m sorry there are so much pictures I couldn’t make the page smaller) :(

Answers

Answer:

9. A

10. D

11. True

Step-by-step explanation:

I might be incorrect sorry :(

Answer:

i think the person that answered first is correct

Step-by-step explanation:

WILL MARK BRAINLEST Phillp and Arnold are helping their teacher buy supplies for a research project.
The teacher gave Phillip $39.00 to buy pencils from the school store. The pencils come in boxes of 12 and cost $1.95 per box.
Arnold was given $48.00 to buy index cards at an office supply store. Index cards are sold in packs of 200 cards and cost $4.80 per pack.
Each student will receive a bag containing three pencils and 25 index cards. How much will each bag cost?

Part A. Create an equation to model how many boxes of pencils Phillip can purchase. Solve the equation. (5 points)



Part B: How many pencils was Phillip able to purchase? (5 points)


Part C: Create an equation to model how many packs of note cards Arnold can purchase. Solve the equation. (5 points)




Part D: How many note cards was Arnold able to purchase? (5 points)



Part E. In a complete sentence, answer how many bags of 3 pencils and 25 note cards can Arnold and Phillip create (5 points).

Answers

Answer:

Step-by-step explanation:

Let x=number of pencil boxes, and let y=packs of index cards

Part A: 39=1.95x

x=20

Part B: 20 x 12 = 240 pencils

Part C: 48=4.8y

y=10

Part D: 10 x 200 = 2000 index cards

Part E: Arnold and Phillip can create 80 bags of 3 pencils and 25 note cards.

Which is enough information to prove that u parallel to v? Lines u and v are cut by transversal t. Clockwise from top left, the angles formed by t and u are 1, 2, 3, 4; formed by v and t are 5, 6, 7, 8. Angle 2 is congruent to angle 4 Angle 4 is congruent to angle 8 Angle 6 + angle 7 = 180 degrees Angle 3 + angle 4 = 180 degrees

Answers

Answer:

b

Step-by-step explanation:

edg

Angle 4 is congruent to angle 8. This is enough information to prove that 'u' parallel to 'v'.

What are parallel lines?

For a pair of lines, the perpendicular distance is equal at every point, then the pair of lines are called parallel lines.

The given information are:

1. Angle 2 is congruent to angle 4.

Angle 2 and Angle 4 are opposite angles. They are always equal.

This information does not prove that 'u' parallel to 'v'.

2. Angle 4 is congruent to angle 8.

Angle 4 and Angle 8 are corresponding angles.

This information proves that 'u' parallel to 'v'.

Angle 6 + angle 7 = 180 degrees.

The sum of the angle 6 and angle 7 are always 180 degrees.

This information does not prove that 'u' parallel to 'v'.

Angle 3 + angle 4 = 180 degrees

The sum of the angle 6 and angle 7 are always 180 degrees.

This information does not prove that 'u' parallel to 'v'.

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A corn vendor at a farmer's market was selling a bag of 8 ears of corn for $2.56. Another vendor was selling a bag of 12 for $4.32. Which bag is the better deal? Explain or show your reasoning.

Answers

The first one because if you are attempting to get the same amount of corn from both bags you can get 16 ears of corn for only a few more cents than the bag of 12. Let me know if this helps!
First one because if you cut it down you can get 12 corn for a dollar less.

-43+51 rlly need help

Answers

Answer:

8

Step-by-step explanation:

can i have branliest?

Answer:8

Step-by-step explanation:If there is a -43 you just minus and ignore the +

Find the value of x in the triangle below.

Answers

Answer:

x = 50°

Step-by-step explanation:

Sum of Angles in a Triangle: 180°

All angles in a triangle must add up to 180°.

Step 1: Set up equation

x + 70° + 60° = 180°

Step 2: Solve for x

Combine like terms: x + 130° = 180°Subtract 130 on both sides: x = 50°

Answer:

50°

Step-by-step explanation:

Step 1:

x + 70° + 60° = 180°       Sum of a Δ

Step 2:

x + 130° = 180°         Combine Like Terms

Step 3:

x = 180° - 130°       Subtract 130° on both sides

Answer:

x = 50°

Hope This Helps :)

There are some nickels, dimes, and quarters in a large piggy bank. For every 2 nickels there are 3 dimes. For every 2 dimes there are 5 quarters. There are 500 coins total.

1.) How many nickels, dimes, and quarters are in the piggy bank? Explain your reasoning.

2.)How much are the coins in the piggy bank worth?

Answers

Answer:

1) 100 dimes, 150 nickels, 250 quarters.

2) $80

Step-by-step explanation:

Can u solve this easy question

Answers

Answer:

I believe it is C

Step-by-step explanation:

Since it goes from 0 to 4 that means it has to start with a positive 4 so A and B are out. then it ends at -4 and the difference between 4 and -4 is 8 so it has to be a difference of 8(-8). Therefore, it becomes 4-8=C

Answer:

I think its A but I'm not sure

Which diagram best shows how fraction bars can be used to evaluate One-half divided by one-fourth? is it the first second third or fourth pic first gets brainlyest

Answers

Answer:

the first one

Step-by-step explanation:

it is the first one it's the only one that makes sense

the first one because it is the only one that goes in order from top to bottom(greatest to least.

Which of the following tables of values represent ordered pairs for the function f(x) = 2x – 1?


x 3 6 9 12
f(x) 6 12 18 24

x 2 4 6 8
f(x) 5 9 13 17

x 1 2 3 4
f(x) 1 3 13 17

x 0 4 8 12
f(x) -1 7 15 23

Answers

The answer is A because x = 1/2 meaning that X is always going to be half of Y

An amusement park’s goal is to sell 1 million tickets within the first four months of its being open.


How many more tickets does the park need to sell in Month 4 to reach this goal?

About how many tickets will the park need to sell in Month 4?

≈______ tickets.

Answers

Answer:

look at the explenation

Step-by-step explanation:

Hello! does it say how many have already been sold? if not then each month is 250,000 tickets

The amusement park needs to sell 250,000 more tickets in Month 4 to reach its goal of 1 million tickets in four months.

We can calculate the average number of tickets the amusement park needs to sell each month in order to determine how many more tickets they need to sell in Month 4 in order to meet their target of selling 1 million tickets within the first four months.

1,000,000 tickets ÷ 4 months = 250,000 tickets per month

250,000 tickets per month × 3 months = 750,000 tickets sold in the first three months

1,000,000 tickets goal - 750,000 tickets sold = 250,000 more tickets needed in Month 4

To reach its objective of selling 1 million tickets within the first four months, the theme park needs to sell 250,000 more tickets in Month 4.

average monthly target ≈ 250,000 tickets.

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PLZZ HELP THIS DUE TODAY AND I STRESSING OUT PLEASE SOMEONE HELP PLZ DON'T SPAM PLZ THS DUE RIGHT NOW PLZZ!!!
1. What two directions could point B be located related to point A? Write two equations to represent the possible locations of point B or in other words, how did you travel to point B. Make a conclusion about the sums in relation to the integers in the equations on the next slide.

2. Explain How you could use absolute value to show that -4+3 and 3+(-4) have the same value. Which property of addition states that these sums are equivalent?


3. You know that the sum of -5 and another integer is a positive integer. What an you conclude about the sign of the other integer? What can you conclude about the value of the other integer?Explain.

4. Jim is standing beside a pool. He drips a weight from 4 feet above the surface of the water in the pool. The weight travels a total distance of 12 feet down before landing on the bottom of the pool. Explain how you can write a sum of integers to find the depth of water.

Answers

Answer:

1 im not 100% on this one but b could be a horizontal reflection or a vs vertical reflection

2 The absolute value of a number is its distance from zero on the number line. Therefore, -4+3 is 4+3, and the absolute value of 3+(-4) is also 4+3.

Step-by-step explanation:

2 The absolute value of a number is its distance from zero on the number line.  Therefore, the absolute value of 3 is 3, and the absolute value of -3 is also 3.  A positive number and its negative have the same absolute value.  It is symbolized as |x|, and |-x| has the same value.

this is a helpful site to use for homework toofor the qustions i coundnt help with.

have any questions be contact me visa discord flur the fur#3243

Horizontal reflection

Which best represents the square root of 361

Group of answer choices

-19 and 19

-18 and 18


1 and 361

4 and 64
PLZZ will give brainlist to the first

Answers

Answer:

Its a,c but they did it first

Step-by-step explanation:

Evaluate the expression when x=5 pls help im confused on what i do with the x=5

Answers

Answer:

whats x5?

Step-by-step explanation:

Answer:

X the variable has an equal value to the number 5

Step-by-step explanation:

Here is the pic for the question, please respond.

Answers

1 gig= $4 each gigabyte costs 4 dollars
1 gig=$4 so 4 dollars

HELP!!! WILL MARK BRAINLIEST!

John increased the amount of water he drinks every day from 20 fluid ounces to 48 fluid ounces. By what percentages did John increases the water he drinks?

Answers

Answer:

240%

Step-by-step explanation:

48/20 = 2.4 = 240%

Answer: Its 140%

pls mark brainlist if you do it :3

how do you write this in standard notation?
4.9·10∧6

Answers

Answer:

49,00000

Step-by-step explanation:

Move the decimal to the right 6 places.

CAN SOMEONE EXPLAIN HOW I DO THESE PROBLEMS? IM SO CONFUSED AND I HAVE A LOT TO DO PLEASE !!!!!!!
1. What two directions could point B be located related to point A? Write two equations to represent the possible locations of point B or in other words, how did you travel to point B. Make a conclusion about the sums in relation to the integers in the equations on the next slide.

2. Explain How you could use absolute value to show that -4+3 and 3+(-4) have the same value. Which property of addition states that these sums are equivalent?


3. You know that the sum of -5 and another integer is a positive integer. What an you conclude about the sign of the other integer? What can you conclude about the value of the other integer?Explain.

4. Jim is standing beside a pool. He drips a weight from 4 feet above the surface of the water in the pool. The weight travels a total distance of 12 feet down before landing on the bottom of the pool. Explain how you can write a sum of integers to find the depth of water.

Answers

Answer:

2. it is just the same question rewrote in a different way.

2.Bc wen you are doing problems like this rise over run is another thing as absolute value.

Luisa ate 3 ounces of pretzels.

The pretzels she ate contained
grams of protein.

Answers

Luisa ate 8.79 grams of protein

do mind if you put the answers to that box where you can pick a word?

and then i well help you as much as i can

Find the equation of the line USE EXACT NUMBERS
Y=____ X+____

Answers

Answer:

Slope: rise/run

          = 5/5

          = 1

Y-intercept:  -5

SLOPE INTERCEPT FORM:

y = 1x-5

The equation of line is y = 1 x + ( -5 )

What is an Equation of a line?

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept.

And y - y₁ = m ( x - x₁ )

y = y coordinate of second point

y₁ = y coordinate of point one

m = slope

x = x coordinate of second point

x₁ = x coordinate of point one

Given data ,

y intercept b = - 5

Slope m = Rise / Run

              = 5 / 5

              = 1

The equation of line is y = mx + b

Therefore , y = x - 5

Hence , the equation of line is y = 1 x + ( -5 )

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Pls help I have a lot to do and it’s all due today

Answers

Answer:

C = 9

Step-by-step explanation:

:>

Answer: 45

Step-by-step explanation:

The adult skeleton consists of 206 bones. There are 28 bones in the skull and 30 bones in the arms and legs. Out of the 28 skull bones, 14 are facial bones, 6 are ear bones and 8 are cranial bones. How many more bones are there in the arms and legs than in the face?

Answers

Answer:

16 more bones are in the arms and legs than in the face.

Step-by-step explanation:

30 - 14 = 16

16 more bones are in arms then legs

Solve
13-4x -6
Thank you

Answers

Answer: 7-4x

Step-by-step explanation:

The answer is 7-4x. How to solve this is since there is no equal sign you do not have to do the opposite property to get the answer. All you you is subtract 13-6 because they do not have any variable and 4x has a variable. Then you get 7-4x. I hope this helped

please help as soon as you know it the answer

Answers

Answer:

A

Step-by-step explanation:

When solving the inequality u have to sometimes change the sign it depends on the value of the number or answer.

HOPE THIS HELPS!

You moved the decimals three places to the right when you "forgot" the decimals. How many places to the left should you move the decimal point in the answer?

Answers

Step-by-step explanation:

shouldnt it be 3

move the decimal 3 places

The graph below represents the height of a golf ball in feet as a function of the elapsed time since it was hit. The golf ball was in the air for 4 seconds.
What are the domain and range of the representative function?
A)Domain: 0 ≤ x ≤ 4
Range: 0 ≤ y ≤ 80
B)Domain: 0 < x < 80
Range: 0 < y < 4
C)Domain: 0 < x < 4
Range: 0 < y < 80
D)Domain: 0 ≤ x ≤ 80
Range: 0 ≤ y ≤ 4

Answers

Answer:

It´s A

Step-by-step explanation:

You can eliminate B and D because the ¨x¨  would be 4 not 80 because it´s on the x-axis not on the y-axis. Secondly whenever you have a graph you need to have the less than or equal to sign with the line under.

Hope this helps :)

The domain and range of the representative function should be option A. Domain: 0 ≤ x ≤ 4

Range: 0 ≤ y ≤ 80

What are domain and range?

The domain of a function represent the set of values that should be permitted for putting into the function. In this set, the x values in the function like f(x). Here the range of the function represent the amount set where the function should be presumed.

Therefore, based on the given graph the correct option is A.

Learn more about graph here: https://brainly.com/question/24366502

Which list shows all the factors of 28?

1, 4, 7, 28
1, 2, 4, 7, 14, 28
1, 2, 4, 6, 14, 28
1, 4, 6, 28

Answers

Answer:

Hope this helps

Also its the second one

Answer:1, 2, 4, 7, 14, 28

Step-by-step explanation:

At Thanksgiving, Mrs. Jones overcooked the turkey so all but StartFraction 4 Over 5 EndFraction of it had to be thrown away. The 8 people at dinner that night each received an equal share of the remaining turkey. To determine the amount of the turkey that each person would receive, Mrs. Jones wrote the expression below.

StartFraction 4 Over 5 EndFraction divided by 8

Which expression is equivalent to Mrs Jones’s expression?
StartFraction 8 Over 10 EndFraction divided by 8
StartFraction 8 Over 5 EndFraction divided by 4
StartFraction 5 Over 4 EndFraction times 8
StartFraction 4 Over 5 EndFraction times 8

Answers

Answer:8/10

Step-by-step explanation: 4/5 times 2 is 8/10 so they equal the same thing

Answer:

8/10

Step-by-step explanation:

The value of y varies directly with x. When y=2 2/5, x=3/5.
What is the value of y when x is 4/5?

A. 1 2/5

B. 3 3/5

C. 3 1/5

D. 5 1/5

Answers

You answer most likely be C
It is probably C because x is x aksjnskajxnaksjjakss

Please help me this is part of my grade and its really important! I’m very serious i dont want people answering nothing for points- i really need help. PLEASE give me right answers :(

Answers

Answer:

Step-by-step explanation:

74,000,000 = 7.4x10^7

.0000625 = 6.25x10^-5

18,000 = 1.8x10^4

.00009 = 9x10^-5

3,728,000 = 3.728x10^6

.0011 = 1.1x10^-3

Answer:

A. 7.4*10 to the 7th power

B. 6.25*10 to the -5th power

C. 1.8*10 to the 4th power

D. 9*10 to the -5th power

E. 3.728*10 to the 6th power

F. 1.1*10 to the -3th power

Step-by-step explanation:

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