Perimeter of a rectangle is 372 yards. If the length is 99 yards, what is the width?
The perimeter P of a rectangle with length l and width w is:
2l + 2w = P
We're given P = 372 and l = 99, so we have:
2(99) + 2w = 372
2w + 198 = 372
Step 1: Group constants:
We need to group our constants 198 and 372. To do that, we subtract 198 from both sides
2w + 198 - 198 = 372 - 198
Step 2: Cancel 198 on the left side:
2w = 174
Step 3: Divide each side of the equation by 2
2w/2 = 174/2
w = 87
The perimeter P of a rectangle with length l and width w is:
2l + 2w = P
We're given P = 372 and l = 99, so we have:
2(99) + 2w = 372
2w + 198 = 372
Step 1: Group constants:
We need to group our constants 198 and 372. To do that, we subtract 198 from both sides
2w + 198 - 198 = 372 - 198
Step 2: Cancel 198 on the left side:
2w = 174
Step 3: Divide each side of the equation by 2
2w/2 = 174/2
w = 87