document.write( "Question 1165757: Mike has 19 coins in his pocket worth a total of $2.35. He only has nickels, dimes and quarters. There are 2 more dimes than nickels. How many of each coin type does Mike have?\r
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Algebra.Com's Answer #790191 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! N+D+Q=19 \n" ); document.write( ".05N+.10D+.25Q=2.35 \n" ); document.write( "but D=N+2 \n" ); document.write( "so .05N+.10(N+2)+.25.Q=2.35 \n" ); document.write( ".05N+.10N+.20+.25Q=2.35 \n" ); document.write( ".15N+.25Q=2.15 \n" ); document.write( "Q=19-(2N+2) \n" ); document.write( "so .15N+.25(19-2N-2)=2.15 \n" ); document.write( ".15N+4.25-.50N=2.15 \n" ); document.write( "-.35N=-2.10 \n" ); document.write( "N=6 nickels (0.30) \n" ); document.write( "D=8 (0.80) \n" ); document.write( "Q=5 (1.25)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |