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Math
Carella Giuliana

The length of the rectangle is twice its width. The perimeter of rectangle is 100cm. Find its dimensions by matrix inverse method or Cramer rule

answers: 1
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Answer:

L=10 ,b= 5

L= twice of a width (2B)

width= B

perimeter of a rectangle = 2(L+B)

2(2B+B)=30

2(3B)=30

6B= 30

B=5

then length= 10

13
Lorenz Tomas
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