<PRE><B>Question 694804</B>
If you planned to bike to a park that was 4.5 miles away, how fast do you need to pedal (in miles/hr) to get there in 75 minutes?
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Note: 75 min = (75/60) = 1 1/4 hrs = (5/4)hr
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Equation:
rate = distance/time = 4.5 miles / (5/4)hr 
= (4*4.5)/5)mph 
= 18/5 mph 
= 3.6 mph
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Cheers,
Stan H.</PRE>