document.write( "Question 1013329: A thousand pounds is divided equally among n people. If there had been 50 people less each person would have received £10 more. Find n \n" ); document.write( "
Algebra.Com's Answer #629586 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A thousand pounds is divided equally among n people. \n" ); document.write( " If there had been 50 people less each person would have received £10 more. \n" ); document.write( " Find n \n" ); document.write( " \n" ); document.write( "multiply equation by n(n-50) \n" ); document.write( "n(n-50)* \n" ); document.write( "Cancel the denominators, you have \n" ); document.write( "1000n - 1000(n-50) = 10n^2 - 500n \n" ); document.write( "1000n - 1000n + 50000 = 10n^2 - 500n \n" ); document.write( "combine like terms, you have a quadratic equation \n" ); document.write( "10n^2 - 500n - 50000 = \n" ); document.write( "simplify divide by 10 \n" ); document.write( "n^2 - 50n - 5000 = 0 \n" ); document.write( "Factors to \n" ); document.write( "(n - 100)(n + 50) = 0 \n" ); document.write( "the positive solution is what we want here \n" ); document.write( "n = 100 people originally \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check this, find how much each will get \n" ); document.write( "1000/50 = 20 ea \n" ); document.write( "1000/100 = 10 ea \n" ); document.write( "---------------- \n" ); document.write( "difference of 10 \n" ); document.write( " |