math

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last thing i promise ok the length of the wing of a model airplane is 3 in. if th escale of the model to the actual plane is 1in=25ft wha tis the length of the actual wing? is it 8.3 or 0.12

  • math -

    Neither of those.

    Think about it if the model wing is 3 inches long, the actual wing must be much longer than 25 feet.

    Try again.

  • math -

    is it 0.12 can u help me

  • math -

    Use this proportion:

    1/25 = 3/x

  • math -

    so its 0.12 right can you u just go thorough it with steps

  • math -

    No.

    Cross multiply and solve for x.

    http://www.purplemath.com/modules/ratio4.htm

  • math -

    so is it 75

  • math -

    Yay! You've got it! :-)

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