The dimensions of rectangular prism X are twice the dimensions of rectangular prism Y. The surface area of prism X is 100 square inches. What is the surface area of prism Y? The dimensions of Prism Z are three times the dimensions of rectangular prism Y. What is the surface area of prism Z?

PLEASEEE help and it would be awesome to tell me how you got your answer so I know what to do.
Thx!

Question

19-03-2016
Mathematics

contestada

The dimensions of rectangular prism X are twice the dimensions of rectangular prism Y. The surface area of prism X is 100 square inches. What is the surface area of prism Y? The dimensions of Prism Z are three times the dimensions of rectangular prism Y. What is the surface area of prism Z?

PLEASEEE help and it would be awesome to tell me how you got your answer so I know what to do.
Thx!

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meerkat18 meerkat18 · Answer 1 · 2016-03-25T14:54:48+01:00

Given:
Dimensions of rectangular prism X are twice the dimension of rectangular prism Y.

prism X = 2(prism Y)
Surface area of X = 2(Surface area of Y)
100 square inches = 2(Surface area of Y)
100 square inches ÷ 2 = Surface area of Y
50 square inches = Surface area of Y

Dimensions of Prism Z are three times the dimensions of rectangular prism Y.

Prism Z = 3(Prism Y)
Surface Area Z = 3(50 square inches)
Surface Area of Z = 150 square inches