document.write( "Question 335000: What is an equation for the following word problem?
\n" ); document.write( "Lois rode her bike to visit a friend. She traveled at 10 mi/h. While she was there, it began to rain. Her friend drove her home in a car traveling at 25 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 friend's house?
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Algebra.Com's Answer #240183 by nyc_function(2741)\"\" \"About 
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Let the distance = x miles
\n" ); document.write( "Speed = 10mph
\n" ); document.write( "Time taken = Distance / speed = x/10 hours\r
\n" ); document.write( "\n" ); document.write( "Returning time taken = x/25\r
\n" ); document.write( "\n" ); document.write( "x/10 - x/25 = 1.5 \r
\n" ); document.write( "\n" ); document.write( "MULTIPLY BY 50 both sides\r
\n" ); document.write( "\n" ); document.write( "5x - 2x = 75
\n" ); document.write( "3x = 75
\n" ); document.write( "x = 25 miles\r
\n" ); document.write( "\n" ); document.write( "Time taken = 25/10 = 2.5 hours ANSWER
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