Question

Sarah wants to buy the car that has a better mileage rating. Cars of Company A travel 20 miles per gallon and cars of Company B travel 14 km per liter.

[1 mile = 1.6 km; 1 gallon = 3.79 liters]

Part A: Which company's car should Sarah buy? Justify your answer by comparing the mileages after converting to the same units. (5 points)

Part B: If 10 gallons of gas is filled in the car which gives better mileage, and you went on a drive and checked on the gas used every 30 miles, describe appropriate scales on the x-axis and y-axis to graph the rate at which the car uses gas. (5 points)

Answer 1

I already solved Part A, but I had to post it because its answer is an important factor in Part B. Company B's car travels at 33 miles per gallon. Therefore, it is the car that Sarah should buy.

Answer 2

I just need to solve Part B.

Answer 3

@hartnn

Answer 4

you understood the question ? of part b

Answer 5

I just need you figure out Part B.

Answer 6

I need to figure out what scales to use and how to graph it.

Answer 7

I'll fan you and give you a medal if you help me out.

Answer 8

@usarmy3497

Answer 9

@usarmy3947

Answer 10

1) if you understood the question, you will understand the method i'll explain,
2) do not lure users using medals/fans, they are just as a token of appreciation.

so, we have 10 gallons at star, that is when distance covered =0

we will take Quantity of fuel used on y-axis and distance covered on x axis.

Answer 11

so, when x=0, y=10
got this much ?

Answer 12

I wasn't trying to "lure" you in.

Answer 13

http://openstudy.com/study#/updates/524bddcfe4b06f86e821258c

Answer 14

Thanks for helping. And yes I understand so far.

Answer 15

@usarmy3947 I got an overload of stupidity after clicking that link..... LOL

Answer 16

http://openstudy.com/study#/updates/5217de0ae4b00ebc7dc12414

Answer 17

good, after 30 miles,
how much will be the fuel used, can u find ?
use the fact that 1 gallon is used for every 33 miles

Answer 18

Okay.