Answer: is there suposed to be a symbol between the 2x and the 2?
You would set the equations equal to eachother and get x=-5/4 and then plug that in for x, i hope this helps!
Assuming n is the number of signers.
7 is 10% of y.
7 = 0.1y
y = 70
n is 80% of y
n = 0.8y
n = 0.8(70)
n = 56
56 signers
Answer:
16
Step-by-step explanation:
use the formula (b/2)^2 to find what number to add to each side of the equation
