document.write( "Question 889214: Any help appreciated, thanks! \r
\n" ); document.write( "\n" ); document.write( "A factory manager is working to write a schedule of hours for his 20 workers.
\n" ); document.write( "Each individual works a 40 hour work week. This particular factory makes two products(calculators and Personal Digital Assistants). If each hour worked on building calculators earns the factory $10 and each hour worked on building PDAs earns the factory $15, howmany hours should be spent building calculators if the manager wants to earn a profit of $9000? What about $10000 or $20000? What should the factory manager decide if he wants to earn the maximum profit?
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Algebra.Com's Answer #538008 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
\"+20+\" workers each work \"+40+\" hrs, so
\n" ); document.write( "\"+20%2A40+=+800+\" hrs total
\n" ); document.write( "Let \"+h+\" = hours worked on calculators
\n" ); document.write( "\"+800+-+h+\" = hours worked on PDAs
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\n" ); document.write( "Let \"+P+\" = total profit for a week
\n" ); document.write( "\"+P+=+10h+%2B+15%2A%28+800+-+h+%29+\"
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\n" ); document.write( "(a)
\n" ); document.write( "\"+P+=+9000+\"
\n" ); document.write( "\"+9000+=+10h+%2B+15%2A%28+800+-+h+%29+\"
\n" ); document.write( "\"+9000+=+10h+%2B+12000+-+15h+\"
\n" ); document.write( "\"+5h+=+12000+-+9000+\"
\n" ); document.write( "\"+5h+=+3000+\"
\n" ); document.write( "\"+h+=+600+\"
\n" ); document.write( "and
\n" ); document.write( "\"+800+-+h+=+800+-+600+\"
\n" ); document.write( "\"+800+-+h+=+200+\"
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\n" ); document.write( "600 hrs should be spent working on calculators
\n" ); document.write( "200 hrs should be spent working on PDAs
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\n" ); document.write( "You can do the other two
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