document.write( "Question 1030286: A furniture shop refinishes tables. Employees use one of two methods to refinish each table. Method I takes 0.5 hours and the material costs $8. Method II takes 1.5 hours, and the material costs $5. Next week, they plan to spend 92 hours in labor and $484 in material for refinishing tables. How many tables should they plan to refinish with each method? \n" ); document.write( "
Algebra.Com's Answer #645167 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
Let \"+a+\" = number of tables refinished using method 1
\n" ); document.write( "Let \"+b+\" = number of tables refinished using method 2
\n" ); document.write( "---------------------------
\n" ); document.write( "(1) \"+.5a+%2B+1.5b+=+92+\"
\n" ); document.write( "(2) \"+8a+%2B+5b+=+484+\"
\n" ); document.write( "----------------------
\n" ); document.write( "(1) \"+5a+%2B+15b+=+920+\"
\n" ); document.write( "(1) \"+a+%2B+3b+=+184+\"
\n" ); document.write( "---------------------
\n" ); document.write( "Multiply both sides of (1) by \"+8+\"
\n" ); document.write( "and subtract (2) from (1)
\n" ); document.write( "(1) \"+8a+%2B+24b+=+1472+\"
\n" ); document.write( "(2) \"+-8a+-+5b+=+-484+\"
\n" ); document.write( "-----------------------
\n" ); document.write( "\"+19b+=+988+\"
\n" ); document.write( "\"+b+=+52+\"
\n" ); document.write( "and
\n" ); document.write( "(1) \"+a+%2B+3b+=+184+\"
\n" ); document.write( "(1) \"+a+%2B+3%2A52+=+184+\"
\n" ); document.write( "(1) \"+a+%2B+156+=+184+\"
\n" ); document.write( "(1) \"+a+=+28+\"
\n" ); document.write( "They should refinish 28 tables using method 1
\n" ); document.write( "They should refinish 52 tables using method 2
\n" ); document.write( "---------------------
\n" ); document.write( "(1) \"+.5a+%2B+1.5b+=+92+\"
\n" ); document.write( "(1) \"+.5%2A28+%2B+1.5%2A52+=+92+\"
\n" ); document.write( "(1) \"+14+%2B+78+=+92+\"
\n" ); document.write( "(1) \"+92+=+92+\"
\n" ); document.write( "OK
\n" ); document.write( "You can check (2)
\n" ); document.write( "
\n" );