document.write( "Question 1066459: Alvin has 20 coins consisting of nickels and quarters. If the value of the coins is $4.40, how many nickels does Alvin have? \n" ); document.write( "

Algebra.Com's Answer #681637 by josgarithmetic(39621) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"n%2Bq=20\"$
\n" ); document.write( " $\"q=20-n\"$ \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"0.05n%2B0.25q=4.40\"$
\n" ); document.write( " $\"n%2B5q=88\"$
\n" ); document.write( "substitute.
\n" ); document.write( " $\"n%2B5%2820-n%29=88\"$
\n" ); document.write( " $\"n%2B100-5n=88\"$
\n" ); document.write( " $\"-4n=88-100\"$
\n" ); document.write( " $\"4n=12\"$
\n" ); document.write( " $\"highlight%28n=3%29\"$ -------Alvin has three nickels. \n" ); document.write( "

\n" );