document.write( "Question 119915: Production Turley Tailor Inc. makes long-sleeve, shortsleeve,
\n" ); document.write( "and sleeveless blouses. A long-sleeve blouse
\n" ); document.write( "requires 1.5 hours of cutting and 1.2 hours of sewing. A
\n" ); document.write( "short-sleeve blouse requires 1 hour of cutting and .9 hour of
\n" ); document.write( "sewing. A sleeveless blouse requires .5 hour of cutting
\n" ); document.write( "and .6 hour of sewing. There are 380 hours of labor available
\n" ); document.write( "in the cutting department each day and 330 hours in
\n" ); document.write( "the sewing department. If the plant is to run at full capacity,
\n" ); document.write( "how many of each type of blouse should be made each day?
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Algebra.Com's Answer #87920 by ankor@dixie-net.com(22740)\"\" \"About 
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Inc. makes long-sleeve, short-sleeve,and sleeveless blouses.
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\n" ); document.write( " A long-sleeve blouse requires 1.5 hours of cutting and 1.2 hours of sewing.
\n" ); document.write( ":
\n" ); document.write( " A short-sleeve blouse requires 1 hour of cutting and .9 hour of sewing.
\n" ); document.write( ":
\n" ); document.write( " A sleeveless blouse requires .5 hour of cutting and .6 hour of sewing.
\n" ); document.write( ":
\n" ); document.write( "There are 380 hours of labor available in the cutting department each day \r
\n" ); document.write( "\n" ); document.write( ":and 330 hours in the sewing department.
\n" ); document.write( ":
\n" ); document.write( "If the plant is to run at full capacity,how many of each type of blouse should be made each day?
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\n" ); document.write( "Let the 3 types be:
\n" ); document.write( "x = no. of long-sl
\n" ); document.write( "y = no. of short-sl
\n" ); document.write( "z = no of no-sl
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\n" ); document.write( "Total cutting hrs is 380, write the cutting equation:
\n" ); document.write( "1.5x + 1y + .5z = 380
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\n" ); document.write( "Total sewing hrs is 330, write the sewing equation
\n" ); document.write( "1.2x + .9y + .6z = 330
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\n" ); document.write( "The problem here is we have 3 unknowns and 2 equations;
\n" ); document.write( "Choose a value for z that will ensure that x & y will have integer solutions
\n" ); document.write( "I chose z = 100 no-sl
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\n" ); document.write( "1.5x + 1y + .5(100) = 380
\n" ); document.write( "1.5x + 1y + 50 = 380
\n" ); document.write( "1.5x + 1y = 380 - 50
\n" ); document.write( "1.5x + 1y = 330
\n" ); document.write( "and
\n" ); document.write( "1.2x + .9y + .6(100) = 330
\n" ); document.write( "1.2x + .9y + 60 = 330
\n" ); document.write( "1.2x + .9y = 330 = 60
\n" ); document.write( "1.2x + .9y = 270
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\n" ); document.write( "Solve these two equations by elimination
\n" ); document.write( "Multiply the 1st 2 unknown equation by 12 & the 2nd by 15; we have:
\n" ); document.write( "18x + 12y = 3960
\n" ); document.write( "18x + 13.5y = 4050
\n" ); document.write( "--------------------subtracting eliminates x, find y
\n" ); document.write( "0x - 1.5y = -90
\n" ); document.write( "y = -90/-1.5
\n" ); document.write( "y = 60 short-sl
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\n" ); document.write( "Find x using 1.5x + 1y = 330
\n" ); document.write( "1.5x + 60 = 330
\n" ); document.write( "1.5x = 330 - 60
\n" ); document.write( "1.5x = 270
\n" ); document.write( "x = 270/1.5
\n" ); document.write( "x = 180 long-sl shirts
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\n" ); document.write( "We have one solution: x = 180; y = 60; z = 100; will utilize total capacity
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\n" ); document.write( "Check solution in the sewing equatioon
\n" ); document.write( "1.2(180) + .9(60) + .6(100) =
\n" ); document.write( "216 + 54 + 60 = 330 hr
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\n" ); document.write( "You can check the solution in the cutting equation:
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