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4804341040
21.05.2020 •
Mathematics
The length of & rectangle is 3 times the
width. w. Which equations represent the perimeter P. of the rectangle?
A. P = 4w
B. P = 7w
C. P = 8w
D. P = 5w + 2w
E. P = 2(3w + w)
F. P = 2(3w) + 2(w)
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Ответ:
The answer for this question is C, E and F .
Step-by-step explanation:
Given that the length is 3 times the width. So firstly, you have to find the expression of length :
Let width = w,
Next, the perimeter of rectangle is P = 2(length+width) so you have to substitute the expression into the formula :
Let length = 3w,
Let width = w,
Ответ: