Number 19 I think is if you add the awnser to one of the numbers you where subtracting and you get the other number you where subtracting you are right like...
Lets say you had the problem 3-2 which is obviously 1 but if you did 2+1 it's 3 so that's how you check.
Getting black is 1/4 of the percentage, and spinning it 10 times gives us 10/40, because there are 40 possible colors to land on when u spin it 10 times. The last spin, is just like any other time you spin it. just because it's the last spin, doesn't make the black sector greater. So the answer is 1/4 or 25%.
Answer: $15,700 - $24,322= 8622
Step-by-step explanation:
All you have to do is subtract
Heres an example i dont have the anwser to your question tho Hope i helped(1) x + 2y = 4
<span>(2) 5x + y + 15 = 3x - 3y + 23</span>