document.write( "Question 1007161: will sold 190 caramel and almond candy bars. he earns $.60 for each caramel bar and $2 for each almond bar he sells. If he earns $282 how many of each type did he sell? \n" ); document.write( "

Algebra.Com's Answer #623169 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+a+\"$ = number of caramel bars he sold
\n" ); document.write( "Let $\"+b+\"$ = number of almond bars he sold
\n" ); document.write( "------------------------------------
\n" ); document.write( "(1) $\"+a+%2B+b+=+190+\"$
\n" ); document.write( "(2) $\"+.6a+%2B+2b+=+282+\"$
\n" ); document.write( "---------------------
\n" ); document.write( "(2) $\"+6a+%2B+20b+=+2820+\"$
\n" ); document.write( "(2) $\"+3a+%2B+10b+=+1410+\"$
\n" ); document.write( "Multiply both sides of (1) by $\"+3+\"$ and
\n" ); document.write( "subtract (1) from (2)
\n" ); document.write( "(2) $\"+3a+%2B+10b+=+1410+\"$
\n" ); document.write( "(1) $\"+-3a+-+3b+=+-570+\"$
\n" ); document.write( "---------------------
\n" ); document.write( " $\"+7b+=+840+\"$
\n" ); document.write( " $\"+b+=+120+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+a+%2B+b+=+190+\"$
\n" ); document.write( "(1) $\"+a+%2B+120+=+190+\"$
\n" ); document.write( "(1) $\"+a+=+70+\"$
\n" ); document.write( "--------------
\n" ); document.write( "70 = number of caramel bars he sold
\n" ); document.write( "120 = number of almond bars he sold
\n" ); document.write( "---------
\n" ); document.write( "check:
\n" ); document.write( "(2) $\"+.6a+%2B+2b+=+282+\"$
\n" ); document.write( "(2) $\"+.6%2A70+%2B+2%2A120+=+282+\"$
\n" ); document.write( "(2) $\"+42+%2B+240+=+282+\"$
\n" ); document.write( "(2) $\"+282+=+282+\"$
\n" ); document.write( "OK \n" ); document.write( "

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