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3 years ago

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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 o

n 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

1 answer:

stepan [7]3 years ago

3 0

The equation would be letter b. 25h + 20 (15 - h) = 350
Let’s try to solve to get the value of h
=> 25h + 20(15 -h) = 350
=> 25h + (300 – 20h) = 350
=> 25h + 300 – 20h = 350
=> 300 + 5h = 350
=> 5h = 350 – 300
=> 5h / 5 = 50/ 5
=> h = 10
Thus the value of h is 10 which means a car travel on the highways and used 10 gallons of gasoline,

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