A car used 15 gallons of gasoline and traveled a total distance of 350 miles. The car's fuel efficiency is 25 miles per gallon on the highway and 20 miles per gallon in the city. Which equation can you solve to find h, the number of gallons that were used on the highway?

A. 350=25(15-h)+20h
B. 25h+20(15-h)=350
C. 350= (25+20/2)h
D. 15= 350/25h + 350/20h

Question

A car used 15 gallons of gasoline and traveled a total distance of 350 miles. The car's fuel efficiency is 25 miles per gallon on the highway and 20 miles per gallon in the city. Which equation can you solve to find h, the number of gallons that were used on the highway? 

A. 350=25(15-h)+20h
B. 25h+20(15-h)=350
C. 350= (25+20/2)h
D. 15= 350/25h + 350/20h

tkhunny · Answer

There had better by an h*25 in the correct answer.

What else can we use to decide?

stormoshawty · Answer

Those were my only choices.

tkhunny · Answer

You didn't answer my question.  I see a 25h in all four.  We'll need to think up other structures, such as (15-h)20.  Where do you see that?

stormoshawty · Answer

@satellite73  fan me so i can reply to your message.

tkhunny · Answer

Maybe the units will help.

Gallons * (Miles per Gallon) = Miles

nnesha · Answer

nice try!

stormoshawty · Answer

is it B?

anonymous · Answer

yeah B