Question 358301
Lois rode her bike to visit a friend. She traveled 10 mi/h. While she was there, it started to rain. Her friend dorve her home in a car traveling 20 mi/h. Lois took 1.5 h longer to go to her friend's than to return home. How many hours did it take Lois to ride to her friends house?
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let the time  to friends house be x hours
speed = 10 mph
distance = 10x
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return 
speed = 2o mph
time = x-1.5 
distance = 20*(x-1.5)
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10x=20(x-1.5)
10x=20x-30
10x-20x=-30
-10x=-30
/-10
x= 3 hours
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m.ananth@hotmail.ca