document.write( "Question 577515: mr.simpson drove 315 miles to get to the beach. if he averaged 45 miles per hour,how long didi the trip take? \n" ); document.write( "
Algebra.Com's Answer #370185 by Alan3354(69443)\"\" \"About 
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mr.simpson drove 315 miles to get to the beach. if he averaged 45 miles per hour,how long didi the trip take?
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\n" ); document.write( "d = r*t
\n" ); document.write( "t = d/r
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\n" ); document.write( "I hope he left early.
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