math133

a photograph measures 9 in by 12 in. earl put it in a frame that addded 2in to everyside. find the ouside perimeter and total of the photograph and frame.

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  1. I will be happy to check your work.

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  2. would i add all the numbers toegther ?

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  3. You need to tell us what the formula for a perimeter is before you can solve this problem.

    After you post that information, we'll try to help you.

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  4. would the formula be p for piermeter adding the numbers?

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  5. You're getting there.

    What numbers do you add to find the perimeter?

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  6. would i add 9 +12?

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  7. That's partly right.

    Study this web site to learn what a perimeter is.

    http://www.mathopenref.com/rectangleperimeter.html

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  8. would i add 9+9+12+12?

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  9. Yay! You've got it!!!!

    The perimeter of the photo is:

    (2 * 9) + (2 * 12 = 18 + 24
    18 + 24 = 42 inches
    ________________________________

    Now add 2 inches to each side.

    4 + 9 = 13
    4 + 12 = 16

    (2 * 13) + (2 * 16) = 26 + 32
    26 + 32 = 58 inches for the perimeter of the frame

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