document.write( "Question 1074981: Please help me solve this equation :One pipe can fill a tank in 5 hours less than another. Together they
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document.write( "can fill the tank in 5 hours. How long would it take each alone to fill the tank ? Compute the answer
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document.write( "to two decimal places. \n" );
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Algebra.Com's Answer #689652 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! Let n be the time it takes for the first pipe. Then the second pipe would be n+5. So: \n" ); document.write( "1/n + 1/n+5=1/5 \n" ); document.write( "5/n + 5/n+5=1 \n" ); document.write( "5n+25+5n=nē+5n \n" ); document.write( "nē-5n-25=0 \n" ); document.write( "Using the quadratic formula, we get one positive root of 8.09016994375. So the first pipe takes 8.01 hours, while the second pipe takes 13.01 hours. ☺☺☺☺ \n" ); document.write( " |