document.write( "Question 589635: I don't really get how to solve this problem.\r
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document.write( "Chris has a jar with dimes and quarters in it. The jar has 7 more quarters in it than it has dimes. If the total value of the coin is $5.60, how many quarters are in the jar?\r
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document.write( "This was how i did it, but it didn't seem right.\r
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document.write( "25(x+7) = 560
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document.write( "25x+175=560
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document.write( "25x=560-175
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document.write( "25x=385
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document.write( "x=385/25
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document.write( "x=15.4 \n" );
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Algebra.Com's Answer #374916 by John10(297)![]() ![]() You can put this solution on YOUR website! Hello:) \n" ); document.write( "You will need to set up two equations for the linear system and solve the variables.\r \n" ); document.write( "\n" ); document.write( "Let d be the number of dimes and q be the number of quarters \n" ); document.write( "The total value is $5.6: 0.1d + 0.25q = 5.6 \n" ); document.write( "The jar has 7 more quarters in it than it has dimes: q = d + 7\r \n" ); document.write( "\n" ); document.write( "So we have two equations: \n" ); document.write( "0.1d + 0.25q = 5.6 \n" ); document.write( "q = d + 7\r \n" ); document.write( "\n" ); document.write( "Solve the system, you will find the number of quarter and dimes in the jar.\r \n" ); document.write( "\n" ); document.write( "Hope it helps you! \n" ); document.write( "John10:) \n" ); document.write( " |