Answer: The probability of choosing a green marble is 
.
Step-by-step explanation:
- 4 + 5 + 3 = 12 marbles <em>total.</em>
- Since there are 4 green marbles, the probability of choosing one is
. - simplified is .
The researchers should flip a coin to decide independently for each subject, to randomly assign the cola recipe for each subject
Apex :)
170 ≤ 75 + 12.5v (third one)
Answer:
-20x / (x-12) = y
Step-by-step explanation:
3/x - 5/y = 1/4
Multiply each side by 4xy to clear the fractions
4xy ( 3/x - 5/y = 1/4)
Distribute
12y - 20x = xy
Subtract 12y from each side
-20x = xy -12y
Factor out y
-20x = y(x-12)
Divide each side by (x-12)
-20x / (x-12) = y
