document.write( "Question 1057287: Amanda has a jar of 16 coins. In this jar, there are only quarters and nickels with a total of $2.00. How many nickels and quarters does Amanda have? \n" ); document.write( "

Algebra.Com's Answer #672358 by ikleyn(52790) $\"\"$ $\"About$

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\n" ); document.write( "Amanda has a jar of 16 coins. In this jar, there are only quarters and nickels with a total of $2.00.
\n" ); document.write( "How many nickels and quarters does Amanda have?
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document.write( " n +   q =  16,    (1)\r\n" );
document.write( "5n + 25q = 200.    (2)\r\n" );
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document.write( "From (1), express n = 16 -q and substitute it into (2), replacing \"n\". You will get\r\n" );
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document.write( "5*(16-q) + 25q = 200,   or\r\n" );
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document.write( "80 - 5q + 25q = 200,   or\r\n" );
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document.write( "20q = 200 - 80,\r\n" );
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document.write( "20q = 120,  \r\n" );
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document.write( "q =  = 6.\r\n" );
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document.write( "Answer. 6 quarters and 10 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( "in this site.\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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