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30 November, 20:17

The cost in dollars (in dollars) of making x flip flops is represented by 40+4x. The cost (in dollars) of making x sandals is represented by 70+8x. a. Write a polynomial that represents the total cost of making x sandals and x flip flops. b. What is the total cost of making 15 sandals and 15 flip flops?

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  1. 30 November, 21:07
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    a. C = 12x + 110; b. $290

    Step-by-step explanation:

    a. The polynomial

    Let L = cost of flip-flops

    and S = cost of sandals

    Then

    C = L + S

    = 40 + 4x + 70 + 8x

    = 12x + 110

    b. The cost

    C = 12 * 15 + 110

    = 180 + 110

    = $290

    The cost of making 15 flip-flops and 15 sandals is $290.
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