math

posted by anonymus

You have a large container of olive oil. You have used 22 1/2 quarts of oil. Twenty-five percent of the olive oil remains. How many quarts of olive oil remain?

  1. Damon

    22.5 quarts = .75 (total)
    total = 22.5/.75
    we have .25 * total
    so we have .25 * 22.5/.75
    =22.5/3
    = 7.5

  2. Ms. Sue

    0.75x = 22.5

    x = 22.5 / 0.75

    x = 30.4 gallons is the capacity of the container

    30.4 - 22.5 = _______ remaining quarts

  3. anonymus

    Thank you so much but can you please put it in with the proportion set up? I just learned this from school and my teacher wants me to write the proportion set up for extra credit and I do not know how :/

  4. Ms. Sue

    22.5 / 0.75 = x / 0.25

    Cross multiply and solve for x.

  5. anonymus

    I got 8.3?

  6. Ms. Sue

    22.5 / 0.75 = x / 0.25

    0.75x = 0.25 * 22.5

    0.75x = 5.62

    x = 5.625 / 0.75

    x = 7.5

  7. Question

    Why is 5.626 divided by 7.5

  8. Anonymous

    Because you have to divide my your quofficent

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