document.write( "Question 155362: Mike travels ti his friends house at 40miles/hour. He returns at 45 miles/hour.The total trip took 4 hours. How far away is his friend? \n" ); document.write( "

Algebra.Com's Answer #114410 by jojo14344(1513) $\"\"$ $\"About$

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Remember:
\n" ); document.write( " $\"Speed=distance%2Ftime\"$
\n" ); document.write( "Given: $\"Speed=45miles%2Fhour\"$ ; $\"time=4hours\"$ ; $\"d=unknown\"$
\n" ); document.write( "Substituting;
\n" ); document.write( " $\"45miles%2Fhour=d%2F4hours\"$ , cross multiply
\n" ); document.write( " $\"d=%2845miles%2Fcross%28hour%29%29%284cross%28hours%29%29\"$
\n" ); document.write( " $\"d=180miles\"$
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo \n" ); document.write( "

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