make b the subject of the formula P =2(l+b).if p=60 and l=20,find b
find the answer and don't give silly answers
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Answered by
8
Answer:
P =2(l+b)......given
60 =2(20+b)....from question
60= 40+2b
60-40= 2b
20 =2b
20/2= b
10 =b
i.e. b =10
Answered by
4
Answer:
20
Step-by-step explanation:
60 = 2(20 + B)
60 = 40 + B
60 - 40 = B
B = 20
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