SOLUTION: a brother and sister left their house at the same time. The brother headed east on his bike riding 13 miles per hour. The sister headed west on her skateboard riding 5 miles per
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Question 259022: a brother and sister left their house at the same time. The brother headed east on his bike riding 13 miles per hour. The sister headed west on her skateboard riding 5 miles per hour. How long will it take them to be 9 miles apart? Found 2 solutions by richwmiller, rfer:Answer by richwmiller(17219) (Show Source):
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