Triangle Sum Quiz Determine the value of x and Angle A.
75°
x + 53
x + 68
A
The value of x
The value of A

thats not a system of equations, that is a solution

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

sorry i just need to anwers this to get points

step-by-step explanation:

they used 313 gallons of paint