Answer:
3/8
Step-by-step explanation:
There are 3+2+2+1 marbles = 8 marbles
P (yellow) = 3 yellow marbles / 8 marbles
= 3/8
3/8, or 0.375%
In order to find probability, you must divide the total number of possible outcomes (3+2+2+1=8) by number of outcomes (3) that will satisfy your anwser.
Answer: 12
You would take 3+5=8
And then 20-8=12
9X+5Y=35
2X+5Y=0
-(2X+5Y=0)
-2X-5Y=0
7X=35
X=5
2(5)+5Y=0
10+5Y=0
5Y=-10
Y=-2
X=5 Y=-2
