Answer:
∠EFG=(3× 11.2+17)º = 50.6°
∠LMN= (12×11.2−5)º = 129.4°
Step-by-step explanation:
We know that if two angles are supplementary two each other sum of these two angles is equal to 180°.
It is given that ∠EFG and ∠LMN are supplementary angles.
Therefore, ∠EFG +∠LMN = 180°
Given that: ∠EFG=(3x+17)º and ∠LMN=(12x−5)º
⇒ (3x+17)º + (12x−5)º =180°
⇒ (15x+12)° = 180°
⇒15x = 168°
⇒ x = 168°/15
x = 11.2°
Then, ∠EFG=(3× 11.2+17)º = 50.6°
Also, ∠LMN= (12×11.2−5)º = 129.4°
Answer:
Step-by-step explanation:
it should add up to 360°
360=135 + 120 + 7x-64+5x-4+3x+31+4x+15+6x-8 (seems like too much huh)
360=225+25x ( much better just add the x terms and the constants together)
135 = 25x ( just subtract 225 from each side of the equation)
5.4 = x ( divide 135 by 25 )
Answer:
69
------
44
Step-by-step explanation:
Answer:
Step-by-step explanation:
8x + 6y = 48.....reduces to 4x + 3y = 24
2x - 3y = -6
4x + 3y = 24
-------------------add
6x = 18
x = 18/6
x = 3
2x - 3y = -6
2(3) - 3y = -6
6 - 3y = -6
-3y = -6 - 6
-3y = -12
y = -12/-3
y = 4
solution is : (3,4)
the ordered pair (3,4) lies in quadrant I
the x coordinate of the solution is 3
the y coordinate of the solution is 4
B. 12
First you pick a location and then a direction.
I decided to start from the left and then go right. Then set up my ratio as
2/3=8/x
Then you cross multiply.
2*x=2x. 8*3=24
2x=24
Divide 2 on both sides
X=12
