document.write( "Question 905194: Anna has a pocket of dimes and quarters if she has 10 coins worth 1.45 how many of her coins are quarters
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Algebra.Com's Answer #549195 by harpazo(655)![]() ![]() You can put this solution on YOUR website! Multiply 1.45 by 100 to remove the decimal value.\r \n" ); document.write( "\n" ); document.write( "So, 1.45 x 10 = 145.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "d + q = 10 \n" ); document.write( "10d + 25q = 145\r \n" ); document.write( "\n" ); document.write( "===============\r \n" ); document.write( "\n" ); document.write( "d = 10 - q\r \n" ); document.write( "\n" ); document.write( "10(10- q) + 25q = 145\r \n" ); document.write( "\n" ); document.write( "100 - 10q + 25q = 145\r \n" ); document.write( "\n" ); document.write( "100 + 15q = 145\r \n" ); document.write( "\n" ); document.write( "15q = 145 - 100\r \n" ); document.write( "\n" ); document.write( "15q = 45\r \n" ); document.write( "\n" ); document.write( "q = 45/15\r \n" ); document.write( "\n" ); document.write( "q = 3\r \n" ); document.write( "\n" ); document.write( "The number of quarters she has is 3. \r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |