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Bond [772]
3 years ago
5

A rectangle has sides of 4x cm and x cm. the sides of the rectangle are all increased by the same length.if the perimeter of the

larger rectangle is 10x + 16, what is the length added to each side, in centimeters?
Mathematics
1 answer:
Verdich [7]3 years ago
4 0

Answer:

  4 cm

Step-by-step explanation:

The perimeter of the original rectangle is ...

  P = 2(L+W) = 2(4x + x) = 10x

The perimeter of the larger rectangle after we add "a" to each side is ...

  P = 2(L +W)

  = 2((4x+a) +(x+a))

  = 10x +4a = 10x +16

  4a = 16 . . . . . subtract 10x from both sides

  a = 4 . . . . . . . divide by 4

The length added to each side is 4 cm.

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