The perimeter of a rectangle is 42 inches. If the width of the rectangle is 6 inches, what is the length?(2 points)

Responses

36 inches
36 inches
21 inches
21 inches
30 inches
30 inches
15 inches

1 answer

To find the length of the rectangle, we can use the formula for the perimeter of a rectangle, which is P = 2L + 2W, where P is the perimeter, L is the length, and W is the width.

Given that the perimeter is 42 inches and the width is 6 inches, we can substitute these values into the formula and solve for L:

42 = 2L + 2(6)
42 = 2L + 12
30 = 2L
15 = L

Therefore, the length of the rectangle is 15 inches.

The correct response is:

15 inches