document.write( "Question 1206156: Kevin and James each has some money. If only Kevin spends $54, the ratio of the amount of money Kevin has to the amount of money James has will become 2:5. If only James spends $54, the ratio will become 8:13. How much money does each boy have? \n" ); document.write( "
| Algebra.Com's Answer #843403 by mananth(16946)     You can put this solution on YOUR website! Kevin and James each has some money. If only Kevin spends $54, the ratio of the amount of money Kevin has to the amount of money James has will become 2:5. If only James spends $54, the ratio will become 8:13. How much money does each boy have?\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let Kevin have $x \n" ); document.write( "Kevin spends $54 \n" ); document.write( "He has a balance of (x-54)\r \n" ); document.write( "\n" ); document.write( "and James have $y\r \n" ); document.write( "\n" ); document.write( "the ratio of the amount of money Kevin has to the amount of money James has will become 2:5 \n" ); document.write( "(x-54)/y = 2/5\r \n" ); document.write( "\n" ); document.write( "2y = 5(x-54)\r \n" ); document.write( "\n" ); document.write( "2y= 5x-=-270 \n" ); document.write( "2y-5x = =-270........................................1\r \n" ); document.write( "\n" ); document.write( " If only James spends $54, the ratio will become 8:13. \n" ); document.write( "x/(y-54) =8/13\r \n" ); document.write( "\n" ); document.write( "13x = 8(y-54) \n" ); document.write( "13x = 8y -432 \n" ); document.write( "13x -8y = -432....................................2\r \n" ); document.write( "\n" ); document.write( "Multiply (1) by 4 and add the equation to (2) \n" ); document.write( "8y-20x = -1080 \n" ); document.write( "13x -8y = -432\r \n" ); document.write( "\n" ); document.write( "-7x = -1512\r \n" ); document.write( "\n" ); document.write( "x = 216\r \n" ); document.write( "\n" ); document.write( "2y = 5(x-54)\r \n" ); document.write( "\n" ); document.write( "substitute x =218\r \n" ); document.write( "\n" ); document.write( "2y = 5(216-54)\r \n" ); document.write( "\n" ); document.write( "2y=162*5\r \n" ); document.write( "\n" ); document.write( "y= 81*5= 405\r \n" ); document.write( "\n" ); document.write( "Kevin has $216 and James has $405. \n" ); document.write( " \n" ); document.write( " |