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adelina 88 [10]
3 years ago
7

The length of a rectangle is 4 units less than twice the width. What is the length if the area of the rectangle is 160 square un

its?
Enter your answer as a number, like this: 42

Do not enter any units.
Mathematics
1 answer:
11111nata11111 [884]3 years ago
3 0
A) L = (2*W) -4
B) L*W = 160
B) L = 160/W
Substituting that into A)
160/W = (2*W) -4
160 = 2W^2 -4W
2W^2 -4W-160 = 0
Width = 10
Length = 16

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Answer:

-1/3

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x

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Again, this is correct. Therefore, x<2 is also the correct inequality.

So together, we have:

x>-1/3 \text{ and } x

Together, we can write them as:

-1/3

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