Let L=length and W=width and T=total lace
so
2L + 2W = T
and we know
T= 60 and W=20
so
2L + 2(20) = 60
2L + 40=60
2L = 20
so L= ?
Answer:
y = 4
Step-by-step explanation:
5/2y = 10
5/2y x 2/5 = 10 x 2/5
Multiply each side by the reciprocal
y = 4
D. to find the inverse, swap the x and y.