document.write( "Question 358301: Lois rode her bike to visit a friend. She traveled 10 mi/h. While she was there, it started to rain. Her friend dorve her home in a car traveling 20 mi/h. Lois took 1.5 h longer to go to her friend's than to return home. How many hours did it take Lois to ride to her friends house?
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document.write( "MY WORK-
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document.write( "r t d
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document.write( "10 mi/h 1.5+t 10(1.5+t)
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document.write( "20 mi/h t 20t
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document.write( "10(1.5+t)=20t\r
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document.write( "10(1.5+t)=20t
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document.write( "15+10t=20t
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document.write( "15+10t-10t=20t
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document.write( "15=10t \n" );
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Algebra.Com's Answer #255689 by mananth(16946)![]() ![]() You can put this solution on YOUR website! Lois rode her bike to visit a friend. She traveled 10 mi/h. While she was there, it started to rain. Her friend dorve her home in a car traveling 20 mi/h. Lois took 1.5 h longer to go to her friend's than to return home. How many hours did it take Lois to ride to her friends house? \n" ); document.write( "... \n" ); document.write( "let the time to friends house be x hours \n" ); document.write( "speed = 10 mph \n" ); document.write( "distance = 10x \n" ); document.write( "... \n" ); document.write( "return \n" ); document.write( "speed = 2o mph \n" ); document.write( "time = x-1.5 \n" ); document.write( "distance = 20*(x-1.5) \n" ); document.write( "... \n" ); document.write( "10x=20(x-1.5) \n" ); document.write( "10x=20x-30 \n" ); document.write( "10x-20x=-30 \n" ); document.write( "-10x=-30 \n" ); document.write( "/-10 \n" ); document.write( "x= 3 hours \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |