Question

The perimeter of a rectangle is 300 feet. The width of the rectangle is 10 feet more than the length. What is the width of the rectangle? A) 50 feet B) 60 feet C) 70 feet D) 80 feet

Answer 1

300 = 2(x + x + 10)
300 = 2(2x +10)
300 = 4x + 20
4x = 280
x = 70
x + 10 = 80
width = 80ft
answer D) 80 feet