The perimeter of a rectangle is 42 inches. If the width of the rectangle is 6 inches, what is the length?
2 answers:
Answer:
Option B: 15 inches
Step-by-step explanation:
p=2w+2l so 12 (2*6) +2x= 42
42-12=30
30/2=15
The answer is:
15 inches
Explanation:
P = perimeter = 42
L = length = ?
W = width = 6
P rectangle = 2L + 2 W
Substitute into formula:
42 = 2L + 2 * 6
42 = 2L + 12
42 - 12 = 2L
30 = 2L
L = 30/2 = 15
L = 15 inches
I hope this helps!!!
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