document.write( "Question 674058: a collection of coins has a value of $4.90, there are 20 more nickels than dimes. how many nickels and dimes are there?
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Algebra.Com's Answer #419003 by stanbon(75887)\"\" \"About 
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a collection of coins has a value of $4.90, there are 20 more nickels than dimes. how many nickels and dimes are there?
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\n" ); document.write( "Equations:
\n" ); document.write( "Quantity: n = d + 20 coins
\n" ); document.write( "Value::: 5n + 10d = 490 cents
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\n" ); document.write( "Substiute for \"n\" and solve for \"d\":
\n" ); document.write( "5(d+20) + 10d = 490
\n" ); document.write( "5d + 100 + 10d = 490
\n" ); document.write( "15d = 390
\n" ); document.write( "d = 26 (# of dimes)
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\n" ); document.write( "Solve for \"n\" using n = d+20
\n" ); document.write( "n = 26+20
\n" ); document.write( "n = 46 (# of nickels)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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