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Erin covered a box with contact paper. the dimensions of the box are shown in the figure below, 9 inches, 11 inches, 8 inches. the contact paper costs 8 cents 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 did Erin spend on the contact paper?

Sagot :

Surface Area= 518 sq ft.
518 x 0.08 = $41.44

Erin will spend $41.44 on Contact Paper.
JeanaShupp

Answer: Eric spends $41.44 on the contact paper.


Step-by-step explanation:

The dimensions of the box are 9 inches, 11 inches, 8 inches.

The surface area of the box will be given by:

[tex]S.A.=2(lb+bh+hl)\\\Rightarrow\ S.A.=2(9(11)+11(8)+8(9))\\=2(99+88+72)\\=2\times259\\=518\ inch^2[/tex]

Since, the contact paper costs 8 cents per square inch.

The cost of covering the box=[tex]8\times518=\4144\ cents[/tex]

Since, 1 $ = 100 cents or 1 cent =0.01 dollar.

Therefore, The cost of covering the box= [tex]=4144\times0.01=\$41.44[/tex]

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