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anonymous

  • one year ago

Erin covered a box with contact paper. The dimensions of the box are shown in the figure below:

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    The contact paper costs 8¢ per square inch. She will only pay for the contact paper used to cover the box, even if there is waste or extra. How much money did Erin spend on the contact paper? $20.72 $41.44 $48.12 $73.14

  3. Vocaloid
    • one year ago
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    first find the surface area

  4. Vocaloid
    • one year ago
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    surface area = 2*width*height + 2*width*length + 2*length*height

  5. anonymous
    • one year ago
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    sry im confused

  6. anonymous
    • one year ago
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    @hartnn

  7. Vocaloid
    • one year ago
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    width = 8 inches length = 11 inches height = 9 inches surface area = 2*width*height + 2*width*length + 2*length*height = ?

  8. anonymous
    • one year ago
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    56

  9. Vocaloid
    • one year ago
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    try again...

  10. Vocaloid
    • one year ago
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    2*width*height = ?

  11. Vocaloid
    • one year ago
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    * means multiply

  12. anonymous
    • one year ago
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    518

  13. Vocaloid
    • one year ago
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    right, so our surface area is 518 inch^2 now multiply that by 0.08 to get our final answer...

  14. anonymous
    • one year ago
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    41.44

  15. Vocaloid
    • one year ago
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    right, that's our final answer

  16. anonymous
    • one year ago
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    Thank u!!! ^_^

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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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