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?

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) (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
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