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.

both equations and proportions are better.

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.