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

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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) About Me  (Show Source):
You can put this solution on YOUR website!
16*(1/2)=8.......8=16t--->t=1/2 hr-->30 min
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so 8 is the constant of variation
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12*t=8
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t=8/12=2/3 hr--->40 minutes
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so it took 10 more minutes to get home from his friends house