document.write( "Question 388513: a collection of 35 coins contains nickels and quarters. find the number of nickels given that the total face value of the coins is $2.55. \n" ); document.write( "

Algebra.Com's Answer #274840 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,         
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document.write( "Let x and (35-x)represent the quarters and nickels respectively
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document.write( "Question states:
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document.write( "  25x + 5(35-x) = 255 cents
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document.write( "      20x = 255 - 5*35
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document.write( "      20x = 80
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document.write( "        x = 4, the number of quarters, number of nickels = 31   (35-4)\r
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document.write( "CHECKING our Answer
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document.write( "    25*4 + 5*31 = 100 + 155 = 255 cents = $2.55 \n" );
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