For this case we have that by definition:
Complementary angles are those that add up to 90 degrees.
We have the following variables:
x: Angle
y: Complement of the angle
According to the statement we have:
According to the given definition we have:
So, we have two equations with two unknowns:
-----> (1)
-----> (2)
From (1) we clear y:
We substitute and in (2):
Thus, the angle is degrees.
Answer:
4x+18=7x-12
We move all terms to the left:
4x+18-(7x-12)=0
We get rid of parentheses
4x-7x+12+18=0
We add all the numbers together, and all the variables
-3x+30=0
We move all terms containing x to the left, all other terms to the right
-3x=-30
x=-30/-3
x=+10
Hope this helps :)
Answer:
10
Step-by-step explanation:
3000/50 = 60
12/6 = 2(months)
60/6 = 10