document.write( "Question 1098807: a stack of 20 coins contains only nickels and quarters and has a total value of $4 how many of each coin are in the stack \n" ); document.write( "
Algebra.Com's Answer #713211 by MathTherapy(10555)\"\" \"About 
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\n" ); document.write( "a stack of 20 coins contains only nickels and quarters and has a total value of $4 how many of each coin are in the stack
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Let the number of nickels be N
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document.write( "Then number of quarters = 20 - N
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document.write( "We then get: .05N + .25(20 - N) = 4
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document.write( ".05N + 5 - .25N = 4
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document.write( ".05N - .25N = 4 - 5
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document.write( "- .2N = - 1
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document.write( "N, or number of nickels = \"highlight_green%28matrix%281%2C3%2C+%28-+1%29%2F%28-+.2%29%2C+%22=%22%2C+5%29%29\"
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document.write( "Number of quarters: \"highlight_green%28matrix%281%2C3%2C+20+-+5%2C+%22=%22%2C+15%29%29\" \n" );
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