SOLUTION: Jeff drove 60 mph to his house. On the way back to school he drove 75 mph and it took him 1 hour less than it did to drive home. a) What was the total driving time for Jeff?

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Question 718835: Jeff drove 60 mph to his house. On the way back to school he drove 75 mph and it took him 1 hour less than it did to drive home.
a) What was the total driving time for Jeff?
b) How far is Jeff's school from home?
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Jeff drove 60 mph to his house. On the way back to school he drove 75 mph and it took him 1 hour less than it did to drive home.
a) What was the total driving time for Jeff?
b) How far is Jeff's school from home?
***
let x=travel time from school to home
x-1=travel time from home to school
distance=travel time*speed
..
60x=75(x-1)
60x=75x-75
15x=75
x=5
x-1=4
60x=300
a) total driving time=9 hrs
b) How far is Jeff's school from home? 300 mi