<PRE><B>Question 980524</B>
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You did not ask any specific question, so which equation do you want to set up?
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For total time:
210 mi/65 mph + 75 mi/x mph=3.23 hr+75/x hr=total time
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Minimum speed X to complete the whole trip in under Y hours:
75 mi/(Y-3.23hr)=X
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Many other equations can also be derived from the given information.</PRE>