document.write( "Question 281439: Sharon runs a single lap on a track in 100 seconds. Jessica runs the same lap in 90 seconds. If both start at the same time from the same point on the track and each maintains a constant rate, the number of minutes before Jessica laps Sharon is:\r
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document.write( "(A)9 (B) 11 (C) 13.5 (D) 15 (E) 18.5
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Algebra.Com's Answer #204446 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Sharon runs a single lap on a track in 100 seconds. Jessica runs the same lap in 90 seconds. If both start at the same time from the same point on the track and each maintains a constant rate, the number of minutes before Jessica laps Sharon is: \n" ); document.write( "--------------- \n" ); document.write( "On each lap Sharon gains 10 seconds on Jessi's time. \n" ); document.write( "In 9 laps Sharon will have gained a full lap on Jessi. \n" ); document.write( "--- \n" ); document.write( "9 laps will take Sharon 900 seconds \n" ); document.write( "900 seconds = 900/60 = 15 minutes \n" ); document.write( "------------------------------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=========================== \n" ); document.write( "(A)9 (B) 11 (C) 13.5 (D) 15 (E) 18.5 \n" ); document.write( " \n" ); document.write( " |