document.write( "Question 857333: If the speed limit is 65 mph and a person's trip takes 2.5 hours at that speed, how much time does that person save by traveling at 75 mph? \n" ); document.write( "
Algebra.Com's Answer #516502 by rothauserc(4718)\"\" \"About 
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rate times time = distance
\n" ); document.write( "65 * 2.5 = 162.5 miles
\n" ); document.write( "75 * t = 162.5
\n" ); document.write( "t = 2.17 hours
\n" ); document.write( "time saved = 2.5 - 2.17 = 0.33 hours = 19.8 minutes = approx 20 minutes
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