Question

the perimeter of a square picture frame is 48 inches. one side length of the frame is 30.48 centimeters. how many centimeters are in an inch?
The answer is 2.54 centimeters but i need help with my work

Answer 1

Since the perimeter is 4 times a side in a square, we get 48/4=12 inches per side, and 12 in= 30.48 cm. Dividing both sides by 12,we get 1in= 2.54 cm