7th Grade Math!!

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Help!!! How to find the dimensions on a house after its built if it is 18 feet by 16 feet. The only info they give me is that 1/2 in = 10 feet?? What formula do I use?

  • 7th Grade Math!! -

    You can use a proportion. Cross multiply and solve for L (length).

    (1/2)/10 = L/18
    10L = 9
    L = 9/10 inch

    Figure the width on the blueprint the same way that I found the length.

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