Question

Your family drives to New York ( a distance of 240 miles ) and uses 15 gallons of gasoline. If you had a car that traveled 20% more miles per gallon, how much less gasoline would you have needed to make this entire trip?

Answer 1

so if you go 240 miles and you 15 miles per gallon how much gasoline you need is this what you need to know

Answer 2

240/15=16-20%=12.8

Answer 3

Isn't it suppose to be adding 20%?

Answer 4

o then 20%=3.2 + 16 = 19.2

Answer 5

So, would it be 2 gallons less?

Answer 6

3.2 more gallons

Answer 7

I meant the answer.

Answer 8

15+20% =18
240/18=13.33333333
and you would of need 16 gallons
16-13.33=2.67

Answer 9

what are the options A B C D

Answer 10

It's a free response.

Answer 11

hmmm

Answer 12

you can compute your gas mileage by division
you know you get \(240\div 15=16\)mpg
a 20% increase in gas mileage would be \(16\times 1.2=19.2\) so the question comes down to
"if you get 19.2 mpg, how many gallons of gas does it take to go 240 miles?"

Answer 13

divide miles by miles per gallon to get \(240\div 19.2 = 12.5\) gallons,

Answer 14

so i guess you save two and a half gallons

Answer 15

Ohhhh, I get it. thanks

Answer 16

yw