document.write( "Question 269813: bob has 60 coins consisting of quarters and dimes. The coins combined value is $9.45. Find out are many are quarters and how many are dimes. \n" ); document.write( "

Algebra.Com's Answer #197665 by drk(1908) $\"\"$ $\"About$

You can put this solution on YOUR website!
(i) $\"D+%2B+Q+=+60\"$
\n" ); document.write( "(ii) $\"10D+%2B+25Q+=+945\"$
\n" ); document.write( "step 1 - multiply (i) by -10 to get
\n" ); document.write( "(iii) $\"-10D+-+10Q+=+-600\"$
\n" ); document.write( "step 2 - add (ii) and (iii) to get
\n" ); document.write( "(Iv) $\"15Q+=+345\"$
\n" ); document.write( "step 3 - divide by 15 to get
\n" ); document.write( " $\"Q+=+23\"$
\n" ); document.write( "This means
\n" ); document.write( " $\"D+=+37\"$ \n" ); document.write( "

\n" );