Suppose that the length of a certain rectangle is four centimeters more than three times its width. If the area of the rectangle is 39 square centimeters, find its length and width.

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07-03-2021
Mathematics

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Suppose that the length of a certain rectangle is four centimeters more than three times its width. If the area of the rectangle is 39 square centimeters, find its length and width.

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joshuasheng823 joshuasheng823 · Answer 1 · 2021-03-07T00:37:32-05:00

joshuasheng823 joshuasheng823

07-03-2021

Answer:

13 cm and 3 cm

Step-by-step explanation:

The area of the rectangle is 39 cm^2, so the length and width must multiply to equal 39. Since the length, or L, is 4 cm more than 3 times the width, or W, which makes an equation like this, L=3W+4

In this case, 13 is 4 more than 3 times of 3, or 9, since 9+4=13. So, the length of the rectangle is 13 cm while the width is 3 cm.

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