Question

The perimeter of an airplane ticket is 42 centimeters. It is 8 centimeters tall. How long is it?

Answer 1

L = 13

Explanation:

perimeter is 2L + 2W = P

2L + 2(8) = 42

2L + 16 = 42

2L = 26(subtract 16 both sides)

L = 13(divide by 2)