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A ten-gallon aquarium is 3 inches taller than it is wide. It's length is 21 inches, and it's volume is 2,730in. What are the height & width of the aquarium?

  • math -

    H = W + 3

    2730 = H * W * 21 = (W+3) * W * 21

    Solve for W then H.

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