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math

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an aquarium holding african cichlids is 2 inches higher than it is wide. Its length is 29 inches and its volumne is 3480 cubic inches. what is the height and width inches.

  • math -

    length --- 29
    width ---- x
    height ----x+2

    29x(x+2) = 3480
    divide by 29 and expand
    x^2 + 2x = 120
    x^2 + 2x - 120 = 0
    (x+12)(x-10) = 0
    x = 10 or x is a negative, which can't be

    the width is 10 inches
    the height is 12 inches

    check: 10(12)(29) = 3480

  • math -

    An aquarium holding african cichlids is 3inches higher than it is wide.Its length is 28inches,volume is 3640?

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