SOLUTION: Haley and Bianca leave their house at the same time riding their bicycles in opposite directions. Haley rides four mph faster than Bianca. After four hours, they are 84 miles apart
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Question 961457: Haley and Bianca leave their house at the same time riding their bicycles in opposite directions. Haley rides four mph faster than Bianca. After four hours, they are 84 miles apart. At what speed was each person riding? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! You can think of this as one of them
riding at the sum of their speeds, and
the other one standing still
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Let = Bianca's speed in mi/hr = Haley's speed in mi/hr
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Bianca's speed is 8.5 mi/hr
Haley's speed is 12.5 mi/hr
