3-4=-1. To use mental math, imagine that there is a number line in your head. Start at three, and since we're subtracting, move to the left 4 units. This will land you at -1. I hope this gets easier for you in the future!
0.20a=220
Where 0.20 is the decimal form of 20%
a is the unknown number
0.20a=220
------- -----
0.20 0.20
a=1100
220 is 20% of 1100.
Answer:
So since the 2 angles are congruent they will be the same.
Step-by-step explanation:
So since the 2 angles are congruent they will be the same. So for example, if I have a triangle and angle 60 and two congruent angles it will be 60 + 2x =180. I congruent angle will be x then 2 of that is 2x. Angles in a triangle always sum up to 180.
10/26, you can just multiply each number in the fraction by 2 :)
Answer:
67%
Step-by-step explanation:
I did math counts
