<PRE><B>Question 925349</B>
s = d/t
d = st
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walking speed:
s = 0.1/90 miles/second * 60 seconds/minute = 0.066666666666 miles/minute
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walking distance:
d = 0.066666666666 miles/minute * 15 minutes = 1 mile
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answer:
3 + 1 = 4 miles total distance covered
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