Answer:
1/2
Step-by-step explanation:
Since we are trying to find the probability of 2nd being ball being black when we already know that first ball is black. This reduces our problem to probability by which we picked the bag with two black balls.
So the answer should be 1/2.
Answer:
its 7 and 13 becuase 10 minuse 4 is 6 and then i did that with the other two
Answer: x=3
Step-by-step explanation:
Move all x terms to the same side- x/2-x/3-1/2
Multiply to get common denominator- 3x/6-2x/6=1/2
Subtract 3x/6 and 2x/6 - x/6=1/2
Simplify - x=3
Okay I’ll try!!!!! Let me go check it out