document.write( "Question 155385: Please help me to solve this problem.I really don`t understand and drastically need help. Thank you so much for all that you do! Please help me! Here is the problem:\r
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document.write( "Tommy has 40 coins(all nickels, dimes, and quarters) worth 4.50. He has 7 more nickels than dimes. How many quarters does Tommy have? Write an equation.\r
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document.write( "Thanks again so much for the help! \n" );
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Algebra.Com's Answer #114444 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Tommy has 40 coins(all nickels, dimes, and quarters) worth 4.50. He has 7 more nickels than dimes. How many quarters does Tommy have? Write an equation. \n" ); document.write( "------------------------- \n" ); document.write( "Let # of dimes be \"x\"; Value of these is 10x cents \n" ); document.write( "Number of nickels is \"x+7\" ; Value of these is 5(x+7) = 5x+35 cents \n" ); document.write( "Number of quarters is 40 - x - (x+7)= 33-2x ; Value = 25(33-2x)= 825-50x cents \n" ); document.write( "----------------------------------------------- \n" ); document.write( "EQUATION: \n" ); document.write( "value + value + value = 450 cents \n" ); document.write( "10x + 5x + 35 + 825 - 50x = 450 \n" ); document.write( "-35x + 860 = 450 \n" ); document.write( "-35x = -410 \n" ); document.write( "x = 11.71 \n" ); document.write( "Note: The solution should be a whole number as it \n" ); document.write( "is the number of dimes. \n" ); document.write( "Check your problem statement. \n" ); document.write( "===================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |