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Luba_88 [7]
3 years ago
6

A piece of cardboard has been cut into a rectangle with side lengths represented by 9.5x+14.3y cm and 11.7x+22.8y cm. What is th

e perimeter of the cardboard in terms of and ?
Mathematics
1 answer:
kati45 [8]3 years ago
4 0

Given:

Sides of a rectangle are 9.5x+14.3y cm and 11.7x+22.8y cm.

To find:

The perimeter of the cardboard in terms of x and y.

Solution:

We know that, perimeter of a rectangle is

Perimeter=2(length +width)

Now,

Perimeter=2[(9.5x+14.3y) +(11.7x+22.8y)]

On combining like terms, we get

Perimeter=2[(9.5x+11.7x) +(14.3y+22.8y)]

Perimeter=2[21.2x +37.1y]

using distributive property, we get

Perimeter=2(21.2x) +2(37.1y)

Perimeter=42.4x+74.2y

Therefore, the perimeter of the cardboard in terms of x and y is 42.4x+74.2y cm.

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