A picture frame is 5 inches on 2 sides and x inches on the other 2. If its perimeter is 50 inches, how long is each of the other
sides?
A. 20
B. 22
C. 45
D. 48
2 answers:
The answer is A because 5 on 2 sides would equal 10 leaving 40 left dividing it by 2 which is 20.
General formula of the perimeter is
p = 2l + 2w
Given from the question
p = 50
l = 5
Asked from the question
w?
Solution
p = 2l + 2w
2w + 2l = p
Input the numbers to the equation above
2w + 2l = p
2w + 2(5) = 50
2w + 10 = 50
2w = 50 - 10
2w = 40
w = 40/2
w = 20
Each of the other sides is 20 inches
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