math

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A concrete sidewalk 3 feet wide, 18 feet long, and 4 inches thick contains how many cubic feet of concrete?

  • math -

    216 cubic feet

  • math -

    volume = lwh
    = 18(3)(1/3)
    = 18 cubic feet

  • math -

    TO ANONYMOUS

    Be careful it's 4 inches not 4 feet.

  • math -

    (18)(3)(12)(4) = 2592 cubic inches
    2592/12 = 216 cubic feet

    (You can check if you want, I did it myself so just use a calculator or something)

  • math -

    3 feet * 18 feet= 54 feet. 4 inches = 1/3 feet....
    54 feet* 1/3 feet = 18 cubic feet of concrete!

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