document.write( "Question 2334: You have a money jar containing nickels(.05) and quaters(.25) worth $1.55. The money jar contains 11 coins. How many of each coin do you have? \n" ); document.write( "

Algebra.Com's Answer #975 by matthew_sessoms(39) $\"\"$ $\"About$

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x=# of nickles
\n" ); document.write( "y=# of quarters
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\n" ); document.write( "We'll have a system of equations...
\n" ); document.write( "x + y = 11
\n" ); document.write( ".05x + .25y = 1.55
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\n" ); document.write( "I'll use substitution. Solve for \"x\" in equation #1.
\n" ); document.write( "x = 11 - y
\n" ); document.write( "Now, plug this in into the second equation...
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\n" ); document.write( ".05(11-y)+.25y=1.55
\n" ); document.write( ".55-.05y+.25y=1.55
\n" ); document.write( ".2y=1.00
\n" ); document.write( "y=5
\n" ); document.write( "

\n" ); document.write( "Now, plug y=5 into either of the orginal equations & solve for \"x\". I chosed equation 1 because it looks the easiest.
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\n" ); document.write( "x+5=11
\n" ); document.write( "x=6
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\n" ); document.write( "6 nickels ($0.30)
\n" ); document.write( "5 quarters ($1.25)
\n" ); document.write( "Thanks
\n" ); document.write( "MS \n" ); document.write( "

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