Question

The width of a rectangle is represented by 5 + 2y. The length is twice as long as the width. What is the perimeter of the rectangle?Select all correct expressions.
A 4(5+2y)
B 6(5+2y)
C 20+8y
D 30+ 12y

Answer 1

Answer:

D 30+ 12y

Step-by-step explanation:

A rectangle has 4 sides. The opposite sides are equal in size for rectangle . The width which are opposites have same size while the length has same size.

According to the question the width is represented by 5 + 2y

width = 5 + 2y

The length is twice the size of the width which means 2 times the width value.

length = 2(5 + 2y)

The perimeter of the rectangle can be computed when you sum the whole side of the rectangle . The formula can be represented as

Perimeter = L + L + W + W = 2L + 2W = 2(L + W)

perimeter = 2(2(5 + 2y) + 5 + 2y)

perimeter = 2(10 + 4y + 5 + 2y)

perimeter = 2(15 + 6y)

perimeter = 30 + 12y

Answer 2

(5+2y)+2(5+2y)
5+2y+10+4y
15+6y
2(15+6y)
30+12y
D 30+12y