Simple speed comparison problem

FratBro23
Category:
Mathematics
Price: $5 USD

Question description

Dale starts walking to school at a constant speed. Five minutes after he leaves, Dale's sister Ruby realizes that Dale forgot his lunch. Ruby knows that she can run two times the speed that Dale is walking, or bike three times his speed. However, her bike is locked in the garage and it takes her two minutes to unlock the bike and bring it outside to ride. Should Ruby run or bike to reach Dale faster?

Tutor Answer

(Top Tutor) Daniel C.
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School: UCLA
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