Answer:
67.5
Step-by-step explanation:
- When you calculate the 10% of AED75, it is equal to AED7.5
- Then you subtract AED7.5 from AED75 which is AED67.5
Answer:
Step-by-step explanation:
Our expression:
If we know 
, let's substitute 
, for 
, in our expression:
Multiply:
Okay, so all you need to do is to find the missing angle.
First, remember that all the angles of a triangle equal 180°. So if you know two of the angles, all you have to do is add them, then subtract the sum from 180.
1. 78 + 37 = 115 180 - 115 = 65 Do the same thing for each triangle and your answers are.
1. 65° 2. 34° 3. 67° 4. 58°
N = 3
Step-by-step explanation: If you do the equation it comes out to n=4
n+3n=12
4n=12
n=3
You have to add the like terms then divide it so the variable is by itself. And whatever you do to one side, you have to do to the other
