document.write( "Question 1073457: I found a wallet that contained $5 bills and $10 bills. There were 28 bills inside, and they
\n" ); document.write( "were worth a total of $230. How many $5 bills were in the wallet? How many $10 bills were in
\n" ); document.write( "the wallet? \n" ); document.write( "

Algebra.Com's Answer #688281 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+a+\"$ = number of $5 bills
\n" ); document.write( "Let $\"+b+\"$ = number of $10 bills
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\n" ); document.write( "(1) $\"+a+%2B+b+=+28+\"$
\n" ); document.write( "(2) $\"+5a+%2B+10b+=+230+\"$
\n" ); document.write( "---------------------------
\n" ); document.write( "(2) $\"+a+%2B+2b+=+46+\"$
\n" ); document.write( "Subtract (1) from (2)
\n" ); document.write( "(2) $\"+a+%2B+2b+=+46+\"$
\n" ); document.write( "(1) $\"+-a+-+b+=+-28+\"$
\n" ); document.write( "------------------------
\n" ); document.write( " $\"+b+=+18+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+a+%2B+b+=+28+\"$
\n" ); document.write( "(1) $\"+a+%2B+18+=+28+\"$
\n" ); document.write( "(1) $\"+a+=+10+\"$
\n" ); document.write( "----------------------
\n" ); document.write( "There are 10 $5 bills
\n" ); document.write( "There are 18 $10 bills
\n" ); document.write( "-------------------------
\n" ); document.write( "check:
\n" ); document.write( "(2) $\"+5a+%2B+10b+=+230+\"$
\n" ); document.write( "(2) $\"+5%2A10+%2B+10%2A18+=+230+\"$
\n" ); document.write( "(2) $\"+50+%2B+180+=+230+\"$
\n" ); document.write( "(2) $\"+230+=+230+\"$
\n" ); document.write( "OK \n" ); document.write( "

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