allenzoie0512 allenzoie0512

17-05-2022
Mathematics

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A rectangle is four times as long as it is wide. If it has an area of 36 square inches, what are its dimension?. a. 6 by 6 c. 4 by 9 b. 3 by 12 d. 4 and 8 Please select the best answer from the choices provided A B C D

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georgepahno georgepahno

17-05-2022

Answer:

B. 3 by 12

Step-by-step explanation:

[tex]x(4x) = 36[/tex]

[tex]4 {x}^{2} = 36[/tex]

[tex] {x}^{2} = 9[/tex]

[tex]x = 3[/tex]

[tex]4x = 12[/tex]

So the length is 12 inches, and the width is 3 inches.

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