SOLUTION: the perimeter of a rectangle is 38 centimers. the length is 7.5 centimeters. what is the width?

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Question 733955: the perimeter of a rectangle is 38 centimers. the length is 7.5 centimeters. what is the width?
Answer by vidhyak(98) About Me  (Show Source):
You can put this solution on YOUR website!
The perimeter of rectangle is 2(l+b) where l is the length and b is the width
2(l+b) = 38
2(7.5 + b) = 38
15 + 2b = 38
2b = 38 - 15
2b = 23
b = 11.5

Width is 11.5cm