document.write( "Question 1000302: A bag contains dimes and quarters, a total of 40 coins. The value of coins is 7.15. How many dimes are there?
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Algebra.Com's Answer #617750 by algebrahouse.com(1659)![]() ![]() You can put this solution on YOUR website! x = number of dimes \n" ); document.write( "40 - x = number of quarters {there are 40 total coins in the bag}\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "10x + 25(40 - x) = 715 {number of coins times value of coin equals total value} \n" ); document.write( "10x + 1000 - 25x = 715 {used distributive property} \n" ); document.write( "-15x + 1000 = 715 {combined like terms} \n" ); document.write( "-15x = -285 {subtracted 1000 from each side} \n" ); document.write( "x = 19 {divided each side by -15}\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There are 19 dimes. \n" ); document.write( " For more help from me, visit: www.algebrahouse.com \n" ); document.write( " |