document.write( "Question 995340: Jack is holding nickels and dimes. He has 4 more dimes then nickels. He has a total of $.70 in his hand. How many of each coin does he have ? \n" ); document.write( "
Algebra.Com's Answer #807703 by CubeyThePenguin(3113)\"\" \"About 
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n = number of nickels
\n" ); document.write( "d = number of dimes\r
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\n" ); document.write( "\n" ); document.write( "5n + 10d = 70
\n" ); document.write( "d = n + 4\r
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\n" ); document.write( "\n" ); document.write( "Substitute the second equation into the first.\r
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\n" ); document.write( "\n" ); document.write( "5n + 10(n + 4) = 70
\n" ); document.write( "5n + 10n + 40 = 70
\n" ); document.write( "15n = 30
\n" ); document.write( "n = 2\r
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\n" ); document.write( "\n" ); document.write( "There are 6 dimes and 2 nickels.
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