document.write( "Question 422318: In the last race, Lydia is 50 feet in front of Elma after 10 seconds. How fast can Lydia run if Elma can run 20 feet per second? \n" ); document.write( "

Algebra.Com's Answer #294792 by josmiceli(19441) $\"\"$ $\"About$

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The difference in their speeds is
\n" ); document.write( " $\"50\"$ ft/ $\"10\"$ sec
\n" ); document.write( "Let $\"s\"$ = Lydia's speed
\n" ); document.write( " $\"+s+-+20+=+50%2F10+\"$
\n" ); document.write( " $\"s+=+5+%2B+20+\"$
\n" ); document.write( " $\"s+=+25+\"$ ft/sec
\n" ); document.write( " \n" ); document.write( "

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