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A furniture manufacturer produces chairs and sofas. The chairs require 20 feet of wood, 1 lb. of foam rubber, and 2 square yards of material. The sofas require 100 feet of wood, 50 Ibs. of foam rubber, and 20 square yards of material. The manufacturer has in stock 1900 feet of wood, 500 Ibs. of foam rubber, and 240 square yards of material. If the chairs can be sold for $20 each and the sofas for $300 each, how many of each should be produced to maximize the income?

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  1. 31 May, 22:11
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    In order to maximize profit of $3700 we need to produce 50 units of Chairs and 9 units of Sofa

    Step-by-step explanation:

    Let X be the number of units of Chairs produced and Y be the number of units of Sofa to be produced

    wood foam rubber square yards of material Selling Price

    Chairs 20X 1X 2X = $20X

    Sofa 100Y 50Y 20Y = $300Y

    1900 500 240

    20x+100y=1900

    x+50y=500

    2x+20y=240

    use equation 2 to find the value of x

    x = 500-50y

    Substitute value of x in equation 3

    2 (500-50y) + 20y = 240

    1000-100y + 20y = 240

    1000-240 = 100y-20y

    760 = 80y

    y = 9.5 ≈ 9 units (since we can't make half of any product)

    Put value of y in equation 2

    x = 500 - 50 (9)

    x = 50 units

    Maximize profit = 20X + 300Y

    = 20 (50) + 300 (9)

    = $3700
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