Question

Sarah fenced in her backyard. The perimeter of the yard is s18 feet, and the width of the yard is 4 feet. Use the perimeter formula to find the lenght of the rectangular yard in inches: P = 2L + 2W

Answer 1

60 IN

Explanation:

DID THE QUIZ AND GOT IT CORRECT

Answer 2

60 inches

Explanation:

Put the given numbers in the formula and solve for the remaining unknown.

P = 2L +2W

18 ft = 2L +2×(4 ft)

10 ft = 2L . . . . . . . . . subtract 8 ft

5 ft = L . . . . . . . . . . . divide by 2

You want this in inches, so you make use of the fact that each foot is 12 inches.

5 ft = 5×(12 in) = 60 in

The length of Sarah's fenced yard is 60 inches.