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Help!!! On a blue print scale 1/2 inch = 10 feet. How do I figure out the actual width of the living room whose distance is 3/4 inches

  • Math -

    One way to figure it out is to let x = the actual width. Cross multiply and solve for x.

    (1/2) / 10 = (3/4) / x

    30/4 = (1/2)x
    (30/4)/(1/2) = x
    (30/4) * (2/1) = 60/4 = 15 feet

  • Math -

    ok thank u!!!! that helps a lot
    i will try it?

  • Math -

    You're welcome.

  • Math -

    ok well i tryed it and still i don't understand??? can u say so i understand???PLEASE PLEASE PLEASE

  • Math -


  • Math -

    Here's another way to approach this problem.

    1/2 inch = 10 ft.
    1 inch = 20 ft.

    3/4 * 20 = 15 feet

    I'm retired.

  • Math -

    ok thank u got it more but can u help me on other problems they r the same but different #'s

  • Math -

    If I have different fractions can I multiply the others by 20 as well?

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