Solve each system using elimination.
3x+3y=27
x-3y=-11
a. (8,1)
b.(3,6)
c.(6,3)
d.(4,5)

Option D - (4, 5)

Step-by-step explanation:

The y cancels out

3x + x = 27 - 11

4x = 16

Divide both sides by 4

x = 4

Then substitute to get to get y

4 - 3y = -11

Subtract 4 from both sides

-3y = -15

Divide both sides by -3

y = 5

x is 4

y is 5

(4, 5)

hreryryrranswer:

step-by-step explanation:

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180