Question

The length of a rectangle is 3n+ 2 and its width is n-1. The perimeter of the rectangle is twice the sum of its length and its width.

Find the perimeter of the rectangle when n = 4 inches.

Answer 1

34 inches

Explanation:

3n+ 2 when n=4 would be equal to 14, and n-1 when n is 4 would be 3. 14+3=17, and 17x2= 34.

hope this helps!

ibrahim

Answer 2

34 inches

Explanation:

Substitute n with 4.

3*4+2= 14 (length)

4-1= 3 (width)

Since a rectangle has 4 sides, add two lengths (14*2) and two widths, (3*2)

28+6= 34