document.write( "Question 677931: Ricardo drives 28 miles in half an hour. What is his average rate of speed? \n" ); document.write( "
Algebra.Com's Answer #421115 by madman1101(7)\"\" \"About 
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rate=distance/time
\n" ); document.write( "s=speed
\n" ); document.write( "s=28/.5 (.5 for half an hour)
\n" ); document.write( "multiply by 2 to get rid of the denominator
\n" ); document.write( "s=56
\n" ); document.write( "speed=56 mph
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