document.write( "Question 1006406: Ron has 15 coins with a value of $2.55. The coins are nickels and quarters. How many of each coin does he have? \n" ); document.write( "
Algebra.Com's Answer #622559 by ikleyn(52852)\"\" \"About 
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\n" ); document.write( "Ron has 15 coins with a value of $2.55. The coins are nickels and quarters. How many of each coin does he have?
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\n" ); document.write( "q + n = 15
\n" ); document.write( "25q + 5n = 255
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\n" ); document.write( "\n" ); document.write( "I also can solve it using the mental math only:\r
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\n" ); document.write( "\n" ); document.write( "q = \"%28255-15%2A5%29%2F%2825-5%29\" = \"%28255-75%29%2F20\" = \"180%2F20\" = 9 quarters. \r
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\n" ); document.write( "\n" ); document.write( "n = 15 - 9 = 6 nickels.\r
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\n" ); document.write( "\n" ); document.write( "See the lesson  Solving coin problems without using equations  in this site.\r
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