document.write( "Question 1030435: Vinnie has twice as many dimes as quarters. All together, his dimes and quarters have a value of $3.15.\r
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document.write( "How many of each coin does he have?\r
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Algebra.Com's Answer #645298 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Call the number of quarters he has, q. \n" ); document.write( "Thus the number of dimes he has is 2q. \n" ); document.write( "Using the value of each, we write \n" ); document.write( "25q + 10(2q) = 315 (we work in cents) \n" ); document.write( "Now solve for q...we get \n" ); document.write( "25q + 20q = 315 \n" ); document.write( "45q = 315 \n" ); document.write( "q = 7 quarters which means \n" ); document.write( "2q = 14 dimes \n" ); document.write( " |