Answer:
P = 127
Step-by-step explanation:
Since a rectangle has two pairs of congruent sides, we can set one pair equal to each other to find x.
4x + 16 = 2(3x-1)
4x + 16 = 6x - 2
18 = 2x
x = 9
Plug in the value of x into one of the original equations to find the length and width.
4(9) + 16 = 52
1/2 (9) + 7 = 11.5
Perimeter = 52 + 52 + 11.5 + 11.5 = 127
