document.write( "Question 993871: You are trying to swim as many laps as your friend did. After 10 minutes, you have 25 laps left. After 15 minutes, you have 15 laps left. How many laps did your friend swim? How much longer will it take you? \n" ); document.write( "
Algebra.Com's Answer #613131 by ankor@dixie-net.com(22740)\"\" \"About 
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You are trying to swim as many laps as your friend did.
\n" ); document.write( " After 10 minutes, you have 25 laps left.
\n" ); document.write( " After 15 minutes, you have 15 laps left.
\n" ); document.write( " How many laps did your friend swim?
\n" ); document.write( " How much longer will it take you?
\n" ); document.write( ":
\n" ); document.write( "let x = the number of lap your friend swam
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\n" ); document.write( "10 min 25 laps left
\n" ); document.write( "15 min 15 laps left
\n" ); document.write( "It took you 5 min to swim 10 laps, therefore 2 laps/min is your speed
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\n" ); document.write( "x - 25 = 10(2)
\n" ); document.write( "x - 25 = 20
\n" ); document.write( "x = 20 + 25
\n" ); document.write( "x = 45 laps swam by your friend
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\n" ); document.write( "your total time to swim 45 laps
\n" ); document.write( "45/2 = 22.5 min
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\n" ); document.write( "How much longer will it take you? Assume this means after the 15 min point
\n" ); document.write( "22.5 - 15 = 7.5 min to finish \n" ); document.write( "
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