document.write( "Question 278227: one runner can run 3 miles per hour faster than another. in the same time that the slower runner travels 3 miles, the other travels 4 miles. Find the speed of the slower runner. \n" ); document.write( "
Algebra.Com's Answer #202474 by ankor@dixie-net.com(22740)\"\" \"About 
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one runner can run 3 miles per hour faster than another.
\n" ); document.write( " in the same time that the slower runner travels 3 miles, the other travels 4 miles.
\n" ); document.write( " Find the speed of the slower runner.
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\n" ); document.write( "Let s = rate of the slower runner
\n" ); document.write( "then
\n" ); document.write( "(s+3) = rate of the faster runner
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\n" ); document.write( "Write a time equation: time = dist/speed
\n" ); document.write( "\"3%2Fs\" = \"4%2F%28s%2B3%29\"
\n" ); document.write( "cross multiply
\n" ); document.write( "4s = 3(s+3)
\n" ); document.write( "4s = 3s + 9
\n" ); document.write( "4s - 3s = 9
\n" ); document.write( "s = 9 mph is the slow runner
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\n" ); document.write( "Check solution by finding the time of each
\n" ); document.write( "3/9 = 1/3 hr
\n" ); document.write( "4/12 = 1/3 hr also \n" ); document.write( "
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