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blagie [28]
3 years ago
8

*PLEASE SOLVE USING EQUATIONS*

Mathematics
1 answer:
maria [59]3 years ago
7 0

Answer:

21

Step-by-step explanation:

Subtract 7 from 51 and you get 42 . Then you divide 42 by 2 and you get 21.

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e-lub [12.9K]

Given:

Dimensions of a rectangular prism are 6 meters by 3 meters by 12 meters.

To find:

The surface area of the prism.

Solution:

The surface area of a rectangular prism is:

A=2(lb+bh+hl)

Where, l is length, b is breadth and h is height.

Putting l=6,b=3,h=12, we get

A=2(6\times 3+3\times 12+12\times 6)

A=2(18+36+72)

A=2(126)

A=252

Therefore, the surface area of the prism is 252 square meters.

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If wallpaper costs $1.25 per foot, how much will it cost to put new wallpaper in a room with area dimensions of 17 ft long by 16
alukav5142 [94]

Answer:

C. \$340

Step-by-step explanation:

Given wallpaper costs \$1.25 per square foot.

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Step-by-step explanation:

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