180(x - 1)
A quadrilateral has 4 sides, so 180(3) = 540
80 + 110 + 75 = 265
540 - 265 = 275
Last measurement is 275
hope this helps
It is -60 .. you take 40 minus 35 divided by 35 and times it by 100.
Answer: 4
Step-by-step explanation: Subtract 2 on both sides, you get 2c=8 ... divide 2 on both sides. C = 4
Solution:
1) Solve for x in 3x+7y=-1
x=\frac{-1-7y}{3}
2) Substitute x=\frac{-1-7y}{3} into 4x-3y=11
\frac{4(-1-7y)}{3}-3y=11
3) Solve for y in \frac{4(-1-7y)}{3}-3y=11
y=-1
4) Substitute y=-1 into x=\frac{-1-7y}{3}
x=2
5) Therefore,
x=2
y=-1
Done!