Question

Part A

The length (l) of a rectangular box is 5 centimeters more than twice its width (w).

Write an equation to represent the length of the rectangular box.

Part B

Find the length of the box if its perimeter is 100 centimeters.

Answer 1

length of rectangular box = 2[w] + 5

length of rectangular box = 35 cm

Explanation:

Given:

length (l)

width (w)

Perimeter = 100 centimetre

Computation:

Part A;

length of rectangular box = 2[width] + 5

length of rectangular box = 2[w] + 5

Part B;

Perimeter = 2[l+w]

100 = 2[2w + 5 + w]

100 = 6w + 10

w = 15 cm

length of rectangular box = 2[w] + 5

length of rectangular box = 2[15] + 5

length of rectangular box = 35 cm