document.write( "Question 615206: A coin purse contains 24 coins in dimes, quarters and half-dollars. There are five more dimes than quarters. the total value of the coins is 5.45. How many dimes are in the coin purse?\r
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document.write( "I tried setting up an amount/cost/value chart, but trying to obtain the value for half dollars is stumping me and it is making me mess up the whole problem. Thank you for your help! \n" );
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Algebra.Com's Answer #387024 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! d + q + h = 24\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "10d + 25q + 50h = 545 ___ 2d + 5q + 10h = 109\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "d = q + 5\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "substituting ___ (q + 5) + q + h = 24 ___ 2q + h = 19 ___ 20q + 10h = 190\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "substituting ___ 2(q + 5) + 5q + 10h = 109 ___ 7q + 10h = 99\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "subtracting equations (to eliminate h) ___ 13q = 91\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "solve for q, then substitute back to find d and h \n" ); document.write( " |