Answer:
l = 9.5cm, w = 4.5cm
Step-by-step explanation:
l = w + 5
P = 2(l+w)
P = 28cm
Substitute the values
28cm = 2(w + 5 + w)
28cm/2 = 2w + 5
14cm = 2w + 5
14cm - 5cm = 2w
9cm = 2w
w = 9cm/2
w = 4.5cm
l = 4.5cm + 5cm
l = 9.5cm
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Verified answer
Answer:
l = 9.5cm, w = 4.5cm
Step-by-step explanation:
l = w + 5
P = 2(l+w)
P = 28cm
Substitute the values
28cm = 2(w + 5 + w)
28cm/2 = 2w + 5
14cm = 2w + 5
14cm - 5cm = 2w
9cm = 2w
w = 9cm/2
w = 4.5cm
l = w + 5
l = 4.5cm + 5cm
l = 9.5cm