Mathematics Middle School

Christopher put 12 gallons of gas in her car. She uses one gallon for every 20 miles he drives.

a. Write an equation to represent the total amount of gas left in his car based upon how many miles she has driven.
b. Find the slope and y-intercept.

Answers

Answer 1

Answer:

Equation: y=(-1/20)x+12.

Slope: -1/20

Y-intercept: (0, 12)

Step-by-step explanation:

Let x=the number of gallons of gas in Christopher's car.

If we start with 12 gallons, we have the equation: y=(-1/20)x+12.

This equation is already in slope intercept form, so we see that the slope is -1/20, and the y-intercept is (0, 12).

Let me know if this helps!

Related Questions

Drew wants to wallpaper his bedroom. The room is 10 ft long, 12 ft wide, and 8 ft tall. How many square feet of wallpaper does he need? So I got this question wrong and is wondering how I can get 352 square feet as my answer since that is what my teacher got and I don't know she got that so can someone plz help explain.

Answers

Answer:

you have four walls. two of them 12*8 and the other two are 10*8 ( we used 8 in both because it's the height of the room). so it goes( 2*12*8)+(2*10*8) and it goes 352S

Step-by-step explanation:

let's say that walls A 12*8 and walls B 10*8. you have 4 walls ta wallpaper.

for walls A= 2*12*8=192

for walls B=2*10*12=160

in total, you need 160+192= 352 square feet of wallpaper

can you help and explain how you got the answer please and thank you

Answers

Hmm I can’t remember this from the top of my head. I found this one video that helped me it tought the basic of how to find surface. good luck!

The model below represents an equation. Write the equation that is modeled then find what value of x makes the equation true.PLZ HELP ASAP

Answers

Answer:

x = -6

Step-by-step explanation:

5x+2=6x+8

5x-6x=8-2

-1x=6

-1x/-1=6/-1

x=-6

Which relations represent a function? Check all that apply.
(Don’t mind 4 and 5, you don’t have to do them)

Answers

1,2 and 3 are function and 4 isn’t function

Which statement about ocean water density is true? (Science)

a) Ocean water that is lower in temperature and has a lower salinity has a higher density.

b) Ocean water that is lower in temperature and has a higher salinity has a lower density.


c) Ocean water that is lower in temperature and has a higher salinity has a higher density.

d) Ocean water that is higher in temperature and has a higher salinity has a lower density.

Answers

Answer:C

Step-by-step explanation:

The answer is C I am sure

You find a coat that you would like to buy priced at $92. The percent of markup for this clothing store is always 125%. How much did the clothing store pay for this coat, before it was marked up?

Answers

Answer:

$73.60

Step-by-step explanation:

Because if the marked up price is $92 that means you'll get $73.60

LOL ISTG SOME1 HELP . Use the Distributive Property to evaluate 7(4 + 2).

Answers

Answer:

42

Step-by-step explanation:

You have to multiply 7 by 4 and 2 then add them together. 7*4 = 28 and 7*2 = 14. 28 + 14 = 42. (Make sure to double-check to see if my answer is correct)

Answer:

42

Step-by-step explanation:

7 x 4=28

7 x 2=14

14+28

=42

step by step thanks you

Answers

The answer is a and b.

Here's the way to check:

Since all the numbers follow a constant sequence, it is possible to use division. Minus the first term, then divide it by the pattern of the sequence.

For a, 512 - 8 = 504

The pattern from a is each number is increased by 7. So,

504 ÷ 7 = 72

The number itself you count is not important. The point is that the number could be divided fully without remainder. This means 512 will appear in the sequence.

Repeat the above steps for b and c:

512 - 23 = 489

489 ÷ 3 = 163

It can be divided without remainder, 512 appears in this sequence.

512 - 12 = 500

500 ÷ 12 = 41.66666

Since C is a decimal ( there is remainder ), the number 512 does NOT appear in the sequence.

However, if you want to know the logic of WHY this works, I won't be able to give you a satisfying answer. Hope this helps you.

God leeeeeeee boost: do u watch Berleezy or who’s ur favorite Yt 76

I NEED HELP ASAP Joe is purchasing a new cell phone plan and is trying to decide between two different options.
Plan #1:
$20 per month base fee
$0.10 per minute
Plan #2:
$10 per month base fee
$0.15 per minute
a. Last month, Joe spent 160 minutes talking on the phone. If he expects to talk this much next month, which plan should he go with?

b. Joe decided to go with Plan #1. If his total bill for the next month was $25.40, how many minutes did he spend talking on the phone?

Answers

Answer:

A.

Plan 2:

2 = 34

B.

54

Answer:A- plan A=34

2=34

Step-by-step explanation:

B=54    hope it helped have a good day!

MK so what... I'm so confused, please explain

Answers

Answer:

The answer is supplementary

Step-by-step explanation:

supplementary angles add to 180 degrees

answer= supplementary

supplementary=180°
complementary=90°

HELP A PERSON OUT PLEASEEE

Answers

Answer : C

Explanation: it shows the equation involving a 3 which expands the fraction to be added toa 3 over one

Carla is going on a boat tour. The boat will travel a total distance of 70 kilometres during the 10-hour tour. If the boat travels at a constant speed during the tour, what distance in kilometres should the boat travel in 3 hours.

Answers

Answer:

21 km I think

Step-by-step explanation:

If you do 70/10 then you get 7 km per hour. Then you do 7*3 and get 21 km in 3 hours

Hope this helps, though this is kinda late :]

The answer to this is what the other person said

I need help with this ( AMP is hard ;-;)
Have a Nice day :)

Answers

Answer:

Clara

Step-by-step explanation:

Population density is the number of people per unit of area. The population density of a certain region is 55 people per square kilometer. If the region covers 24 square​ kilometers, what is the population of the​ region?

Answers

Answer:

55x24= 1320

so the population of the region is 1320

The answer would be 1,320.
The unit rate would be y=55x or 55 people per square kilometer.
Here’s how to solve it:
You would take the unit rate and multiply it by the amount of square miles and the product will be your answer.

The data for a spinner is shown below.



What is the experimental probability of spinning blue or red, written as a percentage?

Answers

Answer:

pint

Step-by-step explanation:

i

anit

see

picturse

Answer:

oh

Step-by-step explanation:

please help me find an equation, please explain, the equation must work for all of the number of blocks

Answers

3x+1 because 3(1) is 3+1 is 4 and 3(2) is 6 and 6+1 is 7 and so one I'm not exactly sure if that's what your looking for or not??
y= 3x+4 is your answer. the number by the x represents the growth (how much is added) the the 4 is representing how many tiles are on figure 0.

The distance from Earth to the moon is 384,400 kilometers. What is this distance expressed in scientific notation?
3.844E5 kilometers
3.844 x 105 kilometers
3.844E-5 kilometers
3.844E-6 kilometers
3.844 x 106 kilometers
.
3.844E6 kilometers
3.844 x 10-6 kilometers
3.844 x 10-5 kilometers
ya ​

Answers

3.1456 that’s should be the answer of the scientific notation in short you

Answer:

B and E

Step-by-step explanation:

please include an explanation !!

Answers

Answer:

Step-by-step explanation:

Hello!

Height of pyramid = 845 feet

Slant height = 856 feet

width = 175 feet

The surface area of a pyramid = The base area of the pyramid added to the area of the 4 triangles.

The volume of a pyramid = 1/3 base area * height

1 Triangle = 1/2 base * height

Triangle = 1/2 * 175 * 856 feet

1 Triangle Area  = 74,900 feet

The area of 4 triangles = 299,600 feet

Now, the area of the base = is 175 * 175 feet

Base area = 30,625 feet

Surface area = 30,625 + 299,600 feet = 330,225 feet

Volume = 1/3 * Base area * height of pyramid

Volume = 1/3 * 30,625 feet squared * 845 feet

Volume = 1/3 * 25,878,125 feet cubed

Volume = 8,626,041.(6) feet cubed

Hope i helped!

Susan incorrectly factored the expression below.

Answers

12a+15b+9 cause 3*4a=12a 3*5b=15 and 3*3=9

hii help plz i wil put brainliest!

Answers

Answer:

1) 36 feet

2) 240cm

Step-by-step explanation:

Question 1:

[tex]A=(4x+1)^{2}[/tex]

[tex]P = 4(4x+1) = 16x+4[/tex]

[tex]16(2)+4 = 36ft[/tex]

[tex]Perimeter = 36ft[/tex]

Question 2:

[tex]P = 4(3x-15)=12x-60[/tex]

[tex]P = 12(25)-60=240cm[/tex]

First one 60 second one 240

how much would that equal to?

Answers

Answer:

The total surface area of the whole figure would be 91.4cm

Step-by-step explanation:

First I multiplied 6 x 3 then multiplied the answer by 9 for the area of the rectangle in the middle witch was 81. Then I multiplied 5.2 by 2 and got 10.4 then I added 81 ans 10.4 and the total area was 91.4cm. Really hope this helps! :)

91.4 cm sasssssssssssjsjdnxnxxnxnxnxn

Describe two ways the Distributive Property can be used to write equivalent expressions.

Answers

For example, apply the distributive property to the expression 3 (2 + x) to produce the equivalent expression 6 + 3x; apply the distributive property to the expression 24x + 18y to produce the equivalent expression 6 (4x + 3y); apply properties of operations to y + y + y to produce the equivalent expression 3y.

The two ways for the Distributive Property can be used to write equivalent expressions is explained below:

Distributive Property:Here we apply the distributive property to the expression 3 (2 + x) to generate the equivalent expression 6 + 3x.Now apply the distributive property to the expression 24x + 18y to generate the equivalent expression 6 (4x + 3y)

Learn more about the expression here: https://brainly.com/question/13947055?referrer=searchResults

With a coupon, you can get a pair of shoes that normally costs $84 for only $72. What percentage was the discount?

Answers

Answer:

57

Step-by-step explanation:

Gerald went to a bake sale and found a pan of brownies that had ⅖ of the brownies remaining. He asked to buy ⅓ of the remaining brownies. Marlon said that Gerald bought 29 of the pan. Gerald says that Marlon made a mistake. Identify Marlon’s error, and share what the actual answer would be.

Answers

Answer:

instead of  2/9 he put 29

Step-by-step explanation:

he put 29 instead of 2/9.

PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY

Answers

Answer:

1+5n+9y

Step-by-step explanation:

This is just combining like terms, so numbers with the same coefficient will be added together because this is combining like terms, and numbers w/ out a coefficient will be placed together because we are combining like terms

At the end of the evening, there are just enough ingredients to make 4 pancakes. How many cups of flour will be used in this batch?

(Flour is 1 1/2)

Answers

Answer:

6 I'm pretty sure.

Step-by-step explanation:

tell me if I'm wrong, sorry if I am

NEED SOME HELP PLZZZ 30 points!!!!!!!!!
Okay, I missed school because I was quarantined even though the person ended up not have the corona and now I have this work that I don't know :(
Will, someone walks me through this or help me?

Answers

Answer: i’ll help

Step-by-step explanation:

Answer:

I can help you.

Step-by-step explanation:

First you tell me what is the question, and then I will try to answer.

Helloo! I really need help on this!

Answers

the answer is c. The range fo the length of the fish caught by Freddy is greater than the range of the length of the fish caught by Waldo.
The correct answer is C. I hope this helped!! :)

what the answer???????????

Answers

Answer:

20.3

Step-by-step explanation. First I added 2+2=4 then 4+9=13 then I added 13+7.3=20.3

Answer:

i got 20.3 sorry if im wrong

Step-by-step explanation:

i need ill post question 20 after i really need help

Answers

1. 3
2. -4
3. -17
4. -13
5. 1
6. 14
7. -45
8. 36
9. -75
10. 3
11. -15
12. -12
13. -5
14. 15
15. 72
16. -10
17. 25
18. -282

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