636 views
16 votes
16 votes
28°
(4x + 2)°

help please i have test tomorrow and i am so lost :(

28° (4x + 2)° help please i have test tomorrow and i am so lost :(-example-1
User Mmraj
by
2.5k points

2 Answers

27 votes
27 votes

Answer:

15

Explanation:

  1. 28+4x+2=90 because the angle shows its 90 degrees and you need an equation for it.
  2. 30+4x=90 because you have to combine like terms which is the constant cause there is two of them so,you have to add 28 and 2.
  3. 4x=60 because you have to make 30 dissappear which it means you have to subtract in order to make it dissappear which it means 30-30. You'll have to do the same thing on the other side by subtracting from 90 which means 90-30=69.
  4. x=15 because your ganna have to divide on both sides in order to find the value of x.
User Ondrej Skopek
by
3.1k points
4 votes
4 votes

Answer:

15

Explanation:

The little square in the corner means its a right triangle, so 90°. What we do here is subtract 28 from 90 to get 62, then we subtract the 2 in the equation from 62 to get 60. Then from there we divide 60 by 4 in order to get 15. I hope this helps you! :D

User Spence
by
2.6k points