document.write( "Question 267983: Mike and Susan both drive for a shipping company. Mike Averages 20 mph less than Susan. In fact, Mike drives so slow that in 5 hours, he covered fewer miles than Susan did in 3 hours. What are the possible values for Mikes speed? express your answer with an inequality \n" ); document.write( "

Algebra.Com's Answer #196517 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"s\"$ = Susan's average speed in mi/hr
\n" ); document.write( "Then $\"s+-+20\"$ = Mike's average speed in mi/hr
\n" ); document.write( "In $\"5\"$ hrs, Mike covers, on average, $\"5%2A%28s-5%29\"$ mi
\n" ); document.write( "In $\"3\"$ hrs, Susan covers $\"3s\"$ mi
\n" ); document.write( "given:
\n" ); document.write( " $\"3s+%3E+5%2A%28s-20%29\"$
\n" ); document.write( " $\"3s+%3E+5s+-+100\"$
\n" ); document.write( " $\"2s+%3C+100\"$
\n" ); document.write( " $\"s+%3C+50\"$
\n" ); document.write( "Susan's speed is less than $\"50\"$ mi/hr
\n" ); document.write( "Mikes average speed is $\"s+-+20\"$
\n" ); document.write( " $\"s+-+20+%3C+50+-+20\"$
\n" ); document.write( " $\"s+-+20+%3C+30\"$
\n" ); document.write( "Mikes average speed must be less than 30 mi/hr\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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