Question

Correct answers only please!

The aspect ratio of a rectangular shape is it's length divided by it's width (L/W). If the aspect ratio of a chalkboard is 4:3 and the width is 5 in, what is the length of the chalkboard?

A. 6.67 in

B. 9.33 in

C. 12 in

D. 14 in

Answer 1

the answer is A. 6.67 inches

L/W 4/3 = x/5

3x/3 =20/3

x=6 2/3

6.67

Answer 2

Answer: A. 6.67 in

Explanation:

Given : The aspect ratio of a rectangular shape is it's length divided by it's width (L/W).

Let 'l' be the length of the rectangular shaped chalkboard.

If the aspect ratio of a chalkboard is 4:3 and the width is 5 in then we have

`(l)/(5)=(4)/(3)`

Multiply 5 on each side , we get

`l=(4)/(3)*5=6.6666666.....\approx6.67\text{ in.}`

Hence, the length of the chalkboard = 6.67 in.