SOLUTION: She rode a bike for 5 miles then she walked for another 2 miles. she can ride her bike twice as fast as she can walk. The entire trip tool 2 hours . How fast can she walk
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Question 729976: She rode a bike for 5 miles then she walked for another 2 miles. she can ride her bike twice as fast as she can walk. The entire trip tool 2 hours . How fast can she walk
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
time b+w=2,
B*b=5,
W*w=2,
speed B=2W
b = 10/9, B = 9/2, w = 8/9, W = 9/4
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