document.write( "Question 1074474: T-shirts are on sale for $4 and sweaters are on sale for $8. On a particular day 100 garments are sold for $660. How many of each type of clothing were sold? \n" ); document.write( "

Algebra.Com's Answer #689134 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+a+\"$ = number of T-shirts sold
\n" ); document.write( "Let $\"+b+\"$ = number of sweaters sold
\n" ); document.write( "-------------------------------------
\n" ); document.write( "(1) $\"+a+%2B+b+=+100+\"$
\n" ); document.write( "(2) $\"+4a+%2B+8b+=+660+\"$
\n" ); document.write( "------------------------
\n" ); document.write( "(2) $\"+a+%2B+2b+=+165+\"$
\n" ); document.write( "Subtract (1) from (2)
\n" ); document.write( "(2) $\"+a+%2B+2b+=+165+\"$
\n" ); document.write( "(1) $\"+-a+-+b+=+-100+\"$
\n" ); document.write( "------------------------
\n" ); document.write( " $\"+b+=+65+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+a+%2B+65+=+100+\"$
\n" ); document.write( "(1) $\"+a+=+35+\"$
\n" ); document.write( "-------------------------
\n" ); document.write( "35 T-shirts and 65 sweaters were sold
\n" ); document.write( "----------------------------------
\n" ); document.write( "check:
\n" ); document.write( "(2) $\"+4a+%2B+8b+=+660+\"$
\n" ); document.write( "(2) $\"+4%2A35+%2B+8%2A65+=+660+\"$
\n" ); document.write( "(2) $\"+140+%2B+520+=+660+\"$
\n" ); document.write( "(2) $\"+660+=+660+\"$
\n" ); document.write( "OK \n" ); document.write( "

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