X = (yz)/a....I dont know what " a " stands for....but it appears we are solving for z, the number of pizza's.
x = (yz) / a....multiply both sides by a, eliminating it on the right side
ax = yz...now we divide both sides by y
(ax) / y = z <==
Answer:
68 1/2 yd or 68.5 yd
Step-by-step explanation:
You need to add all of the sides (of the figure) to find out what the perimeter is.
AD is perpendicular to BC so slope Ad = -1/slope of BC
Slope of BC = (2 - (-1)) / (- 6- 3) = 3 / -9 = -1/3
So slope of AD = -1 / (-1/3) = -3/-1 = 3 Answer