Answer:
9 inches
Step-by-step explanation:
The perimeter of a rectangle can be found using:
p=l+l+w+w , or
p=2l+2w
We know the width is 5, so we can substitute 5 in for w. We also know the perimeter is 28, so we can substitute 28 in for p.
28=2l+2(5)
Multiply
28=2l+10
Subtract 10 from both sides
18=2l
Divide by 2 on both sides
l=9
The length of the rectangle is 9 inches
Hope this helps! :)
