Arectangle has a width of 3 cm and a length of 10 cm.

what is the effect on the perimeter when the dimensions are multiplied by 10?

a. the perimeter is increased by a factor of 10.

b. the perimeter is increased by a factor of 40.

c. the perimeter is increased by a factor of 100.

d. the perimeter is increased by a factor of 400.

A. The perimeter is increased by a factor of 10.

Step-by-step explanation:

The width of the rectangle = 3,

Length of the rectangle = 10,

Thus, the initial perimeter of the rectangle = 2(3+10) = 2(13) = 26

After the  dimensions are multiplied by 10,

The new width of the rectangle = 30,

Length of the rectangle = 100,

Thus, the new perimeter of the rectangle = 2(30+100) = 2(130)=260

⇒

⇒

Hence, the perimeter is increased by the scale factor 10.

⇒ Option A is correct.

2,600 divided by 80 = 32.5

step-by-step explanation:

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step-by-step explanation: