document.write( "Question 1100035: jack has 60 coins consisting of nickels, dimes and quarters. He has 3 times as many dimes as nickels. Of the coins are worth a total of $8.50, write a system of equations to determine how many of each coin jack has.
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Algebra.Com's Answer #714506 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
VARIABLES
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\n" ); document.write( "\n" ); document.write( "MAKE EQUATIONS ACCORDING TO DESCRIPTION
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\n" ); document.write( "\"n%2Bd%2Bq=60\"
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\n" ); document.write( "\"d%2Fn=3\"
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\n" ); document.write( "\"5n%2B10d%2B25q=850\"\r
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\n" ); document.write( "\n" ); document.write( "SIMPLIFY SYSTEM OF EQUATIONS\r
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\n" ); document.write( "\n" ); document.write( "\"system%28n%2Bd%2Bq=60%2Cd=3n%2Cn%2B2d%2B5q=170%29\"\r
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\n" ); document.write( "\n" ); document.write( "Solve the system any way you want.\r
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\n" ); document.write( "\n" ); document.write( "---
\n" ); document.write( "\"substituting\"\"for\"\"d\":\"system%28n%2B3n%2Bq=60%2Cn%2B6n%2B5q=170%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"system%284n%2Bq=60%2C7n%2B5q=170%29\"\r
\n" ); document.write( "\n" ); document.write( "\"7n%2B5%2860-4n%29=170\"\r
\n" ); document.write( "\n" ); document.write( "\"7n%2B300-20n=170\"\r
\n" ); document.write( "\n" ); document.write( "\"-13n=170-300\"\r
\n" ); document.write( "\n" ); document.write( "\"13n=300-170\"\r
\n" ); document.write( "\n" ); document.write( "\"13n=130\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28n=10%29\"-------ten nickels\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28d=30%29\"------thirty dimes\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28q=20%29\"------twenty quarters
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