document.write( "Question 1076901: Josh can row a boat at an average speed that is eight times as fast as his average swimming speed. It takes him 80 minutes more to swim 4 laps in a lake than to row 4 laps. How fast is his average swimming speed in laps per minute? Round your answer to two decimal places. \n" ); document.write( "
Algebra.Com's Answer #691494 by stanbon(75887)\"\" \"About 
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Josh can row a boat at an average speed that is eight times as fast as his average swimming speed. It takes him 80 minutes more to swim 4 laps in a lake than to row 4 laps. How fast is his average swimming speed in laps per minute? Round your answer to two decimal places.
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\n" ); document.write( "Swim DATA:
\n" ); document.write( "rate = r laps/min ; time = (t+80) min ; distance = r*t + 80r laps
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\n" ); document.write( "Row DATA:
\n" ); document.write( "rate = 8r laps/min ; time = t min ; distance = 8rt laps
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\n" ); document.write( "Equation:
\n" ); document.write( "rt+80r = 8rt
\n" ); document.write( "7rt = 80r
\n" ); document.write( "time = 80/7 = 11.42 min for 4 laps
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\n" ); document.write( "Ans: 11.42/4 = 2.855 min per lap
\n" ); document.write( "rate = 1/2.855 = 0.35 laps per min
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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