Question

Roselyn wants to drive her car at a speed of 60 miles per hour for 1.25 hours her car has fuel efficiency of 15 miles per gallon how many gallons of fuel does roselyn need for her journey

Answer 1

Answer: Hence, there is 5 gallons of fuel Roselyn needed for her journey.

Explanation:

Since we have given that

Speed at which Roselyn wants to drive her car = 60 miles per hour

Time taken by her car = 1.5 hours

As we know the formula for "Distance-Speed " :

`Distance=Speed* Time\\\\Distance=60* 1.25\\\\Distance=75\ miles`

Her car has fuel efficiency = 15 miles per gallon

Number of gallons of fuel is given by

`(75)/(15)\\\\=5\ gallons`

Hence, there is 5 gallons of fuel Roselyn needed for her journey.

Answer 2

5

1.25 hours = 75 miles = 1/4 of 60 is 15 (of the 1.25)
75/15 (miles per gallon)