T.J. Is wallpapering his bedroom. The room has 8 ft. high ceilings and is 12 1/2 ft. long. If the perimeter of the room is 48 1/
2 ft., what is the width of the room?
2 answers:
Hello!
We know that the length of the room is 12 1/2 ft. To find the perimeter, multiply 12 1/2 ft by 2 and subtract that from the perimeter:
12.5 × 2 = 25
48.5 - 25 = 23.5
Now, divide that by 2 to get the width:
23.5 / 2 = 11.75
We can double check by using the perimeter formula:
P = 2(12.5) + 2(11.75)
= 48.5
So, the width of the room is 11.75 (11 3/4) ft.
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