Answer:
x = 30
Step-by-step explanation:
-2x + 10 +4x=70
-10 -10
-2x + 4x = 60
2x = 60
/2 /2
x = 30
Answer:
x is 4
Step-by-step explanation:
21x+6 = 90
21x=84
x=4
Answer:
Step-by-step explanation:
slope = 

Point-slope form:
y - y1 = m(x - x1)
y - 5 = -10(x - 8)
Answer:
KL ≈ 1.94
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos48° =
=
=
( multiply both sides by KL )
KL × cos48° = 1.3 ( divide both sides by cos48° )
KL =
≈ 1.94 ( to the nearest hundredth )
Answer:
b = 10
Step-by-step explanation:
You can solve for b by dividing both sides by 1/5 because it will remove the 1/5 from the left side of the equation, but what you do to one side you must do to the other side as well.
(1/5b)/ (1/5) = 2/ (1/5)
b = 10