Answer:
10
Step-by-step explanation:
Step-by-step explanation:
since the two angles are supplementary angles they add up to give 180°
therefore, 7x+2+3x-2=180°
or, 10x= 180°
or, x= 18°
The solution is x = 2 and y = 4
<em><u>Solution:</u></em>
<em><u>Given system of equations are:</u></em>
y = 2x -------- eqn 1
x = -y + 6 ----------- eqn 2
We can solve the system of equations by substitution method
<em><u>Substitute eqn 1 in eqn 2</u></em>
x = -2x + 6
Move the variables to one side and constants to other side
x + 2x = 6
3x = 6
Divide both sides of equation by 3
x = 2
<em><u>Substitute x = 2 in eqn 1</u></em>
y = 2(2)
y = 4
Thus the solution is x = 2 and y = 4
Answer:
85
Step-by-step explanation:
it's counting by tens and the line is going in the middle of 80 and 90 so it's 85
Yes...........................
How?
