document.write( "Question 320204: A student makes a $10.50 purchase at the bookstore with a $20.00 dollar bill. The store has no bills and gives change in quaters and fifty-cent pieces. There are 30 coins in all, how many of each are there? \n" ); document.write( "

Algebra.Com's Answer #229328 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
The change is $9.50.
\n" ); document.write( " $\"30\"$ fifty-cent pieces adds up to $\"15\"$ dollars
\n" ); document.write( " $\"15\"$ fifty-cent pieces adds up to $\"7.5\"$ dollars, and
\n" ); document.write( "if the rest is quarters, that is $\"15%2A25+=+3.75\"$ , and
\n" ); document.write( " $\"7.5+%2B+3.75+=+11.25\"$ that's too much
\n" ); document.write( "--------------------------------
\n" ); document.write( " $\"10\"$ fifty-cent pieces adds up to $\"5\"$ dollars
\n" ); document.write( "and $\"20%2A25+=+5\"$ dollars and $\"5+%2B+5+=+10\"$ That's $\"50\"$ cents over
\n" ); document.write( "--------------------------------
\n" ); document.write( " $\"9\"$ fifty cent pieces adds up to $\"4.5\"$ dollars
\n" ); document.write( "and $\"21%2A25+=+5.25\"$ dollars $\"4.5+%2B+5.25+=+9.75\"$ That's $\"25\"$ cents over
\n" ); document.write( "--------------------------------
\n" ); document.write( " $\"8\"$ fifty cent pieces = $\"4\"$ dollars
\n" ); document.write( " $\"22%2A25+=+5.5\"$ dollars and $\"4+%2B+5.5+=+9.5\"$ this is the answer
\n" ); document.write( "--------------------------------
\n" ); document.write( "The change is 8 fifty-cent piece and 22 quarters \n" ); document.write( "

\n" );