document.write( "Question 1119683: Carol has a mix of dimes and quarters. the 32 coins are worth $6.20. how have quarters does she have \n" ); document.write( "

Algebra.Com's Answer #735287 by ikleyn(52814) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "Had all coins be dimes, the 32 coins would worth $3.20.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The difference $6.20 - $3.20 = 300 cents is due the fact that we counted quarters as cents - so we need to replace \r\n" );
document.write( "\r\n" );
document.write( "some number of dimes by quarters in our counting.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Each replacement will diminish the difference of 300 cents by 25-10 = 15 cents.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "So, we need to make  = 20 replacements.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Thus the collection contains 20 quarters and 32-20 = 12 dimes.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Answer.  The collection contains 20 quarters and 12 dimes.\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "You may check the answer on your own.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );