document.write( "Question 997305: Belinda removed 14 coins from her piggy bank consisting of dimes and quarters. If the Value of these coins was $2.60, then how many of each type coin did she have?
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Algebra.Com's Answer #807688 by CubeyThePenguin(3113) You can put this solution on YOUR website! d = number of dimes \n" ); document.write( "q = number of quarters\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "10d + 25q = 260 \n" ); document.write( "d + q = 14\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Multiply the second equation by 10.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "10d + 25q = 260 \n" ); document.write( "-(10d + 10q = 140) \n" ); document.write( "------------------------ \n" ); document.write( "15q = 120 \n" ); document.write( "q = 8\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There were 8 quarters and 6 dimes. \n" ); document.write( " |