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21 August, 16:34

a cruise ship has a rectangular swimming pool. The width of the pool is 30% of the length of the pool. the perimeter of the pool is 1040 feet. what is the width of the pool? What is the length of the pool?

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  1. 21 August, 19:07
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    The length of the pool is 400 feet.

    The width of the pool is 120 feet.

    Step-by-step explanation:

    We are given the width (W) is 30% of the length (L).

    We are also given the perimeter of the pool is 1040.

    So in equation form this is what we have:

    W=.3L (of means multiply)

    2L+2W=1040

    We are going to plug the first equation into the second like so:

    2L+2 (.3L) = 1040

    2L+.6L=1040

    2.6L=1040

    Divide both sides by 2.6

    L=1040/2.6

    L=400

    The length of the pool is 400 feet.

    W=.3L

    W=.3 (400)

    W=120

    The width of the pool is 120 feet.
  2. 21 August, 19:13
    0
    We get two equations that we can use for this equation.

    2w + 2L = 1040

    and

    w = 0.3L

    We can input w into the first equation:

    0.6L + 2L = 1040

    2.6L = 1040

    L = 400

    W = 120
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