document.write( "Question 1065470: Erin has quarters and nickels for a total of 16 coins. The value of his coins is $2.60. How many quarters does Erin have? How many nickels does Erin have? \n" ); document.write( "

Algebra.Com's Answer #680615 by ikleyn(52878) $\"\"$ $\"About$

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\n" ); document.write( "Erin has quarters and nickels for a total of 16 coins. The value of his coins is $2.60.
\n" ); document.write( "How many quarters does Erin have? How many nickels does Erin have?
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document.write( "Let Q be the number of Quarters. Then the number of nickels is (16-Q).\r\n" );
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document.write( "Quarters contribute 25Q       cents to the total.\r\n" );
document.write( "Dimes    contribute 5*(16-Q) cents to the total.\r\n" );
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document.write( "The value equation is \r\n" );
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document.write( "25Q + 5*(16-Q) = 260  cents.\r\n" );
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document.write( "Simplify and solve for Q:\r\n" );
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document.write( "25Q + 80 - 5Q = 260,\r\n" );
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document.write( "20Q = 260 - 80,\r\n" );
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document.write( "20Q = 180  --->  Q =  = 9.\r\n" );
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document.write( "Answer. 9 quarters and 16-9 = 7 nickels.\r\n" );
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\n" ); document.write( "\n" ); document.write( "There is entire bunch of lessons on coin problems\r
\n" ); document.write( "\n" ); document.write( "    - Coin problems\r
\n" ); document.write( "\n" ); document.write( "    - More Coin problems\r
\n" ); document.write( "\n" ); document.write( "    - Solving coin problems without using equations\r
\n" ); document.write( "\n" ); document.write( "    - Kevin and Randy Muise have a jar containing coins\r
\n" ); document.write( "\n" ); document.write( "    - Typical coin problems from the archive\r
\n" ); document.write( "\n" ); document.write( "    - More complicated coin problems\r
\n" ); document.write( "\n" ); document.write( "    - Solving coin problems mentally by grouping without using equations\r
\n" ); document.write( "\n" ); document.write( "    - Santa Claus helps solving coin problem\r
\n" ); document.write( "\n" ); document.write( "    - OVERVIEW of lessons on coin word problems\r
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\n" ); document.write( "\n" ); document.write( "Read them and become an expert in solution of coin problems.\r
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\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic \"Coin problems\".\r
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