The formula to find the perimeter of a rectangle is:
P = 2(l + w)
plug in your known values to solve for the unknown
20 = 2(l + 3)
20 = 2l + 6
14 = 2l
14/2 = l
7 = l or l = 7
you can check this by plugging your l value into the equation
P = 2(l + w)
20 = 2(7 + 3)
20 = 2(10)
20 = 20
hope this helps :)
Answer:
The answer is either
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Step-by-step explanation:
Answer:
A
Step-by-step explanation:
The associative property states that we can regroup the terms of an expression and obtain the same result.
We have then:

The expression that complies with this property is given by:

Answer:
An equation that shows an example of the associative property of addition is:
a. (- 4 + i) + 4i = -4 + (i + 4i)
Answer: the answer would be 7
Step-by-step explanation:
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