80
adding up the numbers 30,20,5,25
maybe im wrong but i hope it helps...
-b +or- root (b^2 -4ac) / 2a
3+or- root 9+20/ 2
3+ or - root 29 /2
5.38516480713 + 3 = 8.385 / 2
x = 4.1925
or x = -1.1925
a=1
b=-3
c=-5
Answer:
Step-by-step explanation:
y = mx + b
(y - b)/m = x
(5 - 1)/2 = x
4/2 = x
x = 2
Because 80+40+30 equals 150 then you divide by how many number there are and there are 3 so 150 divided by 3 = 50