SOLUTION: Tommy rode his bike to visit a friend. He traveled at 10mi/hi/ While he was there, it began to rain. His friend drove him home in a car traveling west at 100mi/h. Tommy took 1.5hou
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Question 900247: Tommy rode his bike to visit a friend. He traveled at 10mi/hi/ While he was there, it began to rain. His friend drove him home in a car traveling west at 100mi/h. Tommy took 1.5hours longer to go to his friend's than returning home. How many hours did it take Tommy to ride to his friend's house.
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Tommy rode his bike to visit a friend. He traveled at 10mi/hr/ While he was there, it began to rain. His friend drove him home in a car traveling west at 100mi/hr. Tommy took 1.5hours longer to go to his friend's than returning home. How many hours did it take Tommy to ride to his friend's house.
let x=travel time to friend's house
distance=speed*travel time
10x=100(x-1.5)
10x=100x-150
90x=150
x=15/9=5/3
How many hours did it take Tommy to ride to his friend's house? 5/3 hr
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