SOLUTION: Tyson often rides his bike 8 miles to visit a friend. His speed varies inversely with the time it takes to cover that distance. Today he rode at 16 mph to get to his friends hous

Question 181519: Tyson often rides his bike 8 miles to visit a friend. His speed varies inversely with the time it takes to cover that distance. Today he rode at 16 mph to get to his friends house, and then he rode at a rate of 12 mph to get home. How much longer did it take him to get home than to get to his friends house?
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
16*(1/2)=8.......8=16t--->t=1/2 hr-->30 min
:
so 8 is the constant of variation
:
12*t=8
:
t=8/12=2/3 hr--->40 minutes
:
so it took 10 more minutes to get home from his friends house
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