edwardsaubrey edwardsaubrey
  • 21-10-2016
  • Mathematics
contestada

If ∠A and ∠B are supplementary and ∠A = 4x – 8 and ∠B = 2x +2, what is the value of x?

Respuesta :

babygirl0328
babygirl0328 babygirl0328
  • 21-10-2016
Set them equal together. 4x-8=2x+2. Subtract 2x on both sides. 2x-8=2. Add 8 on both sides. 2x=10. Divide 2 on both sides x=5. Check answer!!!
4(5)-8=12
2(5)+2=12 
12=12
So answer is x=5!!!!
Answer Link

Otras preguntas

Select all of the terms that are "like." 1/2 xy x 2 2xy -xy xy 2 2x 2y
He is singing the anthem (interrogative)
Hoa looks red . She was outdoor yesterday . Pẻhps she has
A biker rode at 4m/s for 10 seconds. How far did they travel? A. 0.4 m B. 2.5 m C. 14 m D. 40 m
aluminum has a density of 2.70 g/cm^3, a sample with a volume of 50 cm^3 will have how much mass?
qShe ______ (admire) her teacher and values his advice. ( Fill with phrasal verb ) *looked forlooked afterlooks up to​
sdsscivil techonology
Which of the following is an example of a belief ?
Which picture shows a proper reflection across the red dashed line? A B
2. Deon wants to find the perimeter of a square with side length 6m - 3. Write two expressions that represent the perimeter, including one expression in simples