Its very simple. Every triangle has a maximum degree of 180°.
We can substract all of the given angles to get our x angle, like so:
x = 180 -102 - 39 = 39°
Answer:8x
Step-by-step explanation: Basically 10x and 2x are both x so lets forget about them 10-2 is 8 now we can add back the x. Also when two numbers are both the same variables you can subtract or add like they are whole numbers
Answer:
1 4 /15
Step-by-step explanation:
3/5 + 2/3
the first step is to get a common denominator, 15
3/5 * 3/3 + 2/3 * 5/5
9/15 + 10/15
19/15
new we need to change it to a mixed number
15 goes into 19 one time with 4 left over
1 4/15
