L = 84/12 = 7
W = 7/4 = 1.75
3) P= 2L + 2W= 2L + 2(L-12)
solve for L, you know Perimeter. Then, width is L-12
L = 108/4 = 27
W = 27-12 = 15
The perimeter of a rectangular carpet is 70feet. The with is three -fourths the length .Find the width.
38.
The length of a rectagular room is six times as the width . The perimeter 84 yards. find the width.
39.
The width of a rectangle is 12 less than the length. The perimeter is 108 units Finf the length.
P= 2L + 2W= 2L + 2(3/4 L)
solve for L, you know Perimeter. Then, width is 3/4 L
2) P= 2L + 2W= 2*6W + 2W
solve for W
1 answer
1 answer