math 7+

Trevor's sister is 1/8 the height of a 40-foot dinosaur. She is
A. 6 feet tall
B. 5.5 feet tall
C. 5.3 feet tall
D. 5 feet tall

So that is my homework question i don't understand how to make a propotion to answer the question.

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  1. 1/8 = x/40

    Cross multiply and solve for x.

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    Ms. Sue
  2. 5 feet tall or D.
    1/8 times x/40 (the proportion)
    You would then cross multiply.
    So then you'd have 40=8x.
    Then you can divide by eight on each side and you'd get 5 feet.
    Hope this helped!

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