Answer:
5:6
Step-by-step explanation:
20/4=5
24/4=6
20:24 ratio simplified is 5:6
sorry if wrong
Answer:
54 daisies
Step-by-step explanation:
4 tulips : 9 daisies
24 tulips : ?
(24 × 9) ÷ 4 = 54 daises
Answer:
{x:x is a multiple of 3, x ≤ 15}
Answer:
0.49
Step-by-step explanation:
We apply conditional probability to solve this question.
We have Events X and Events Y
P(X) = Probability Christine fails the course = ??? Unknown
P(Y) = Probability Christine finds a tutor
= 0.35
P(Y') = Probability Christine does not find a tutor = 1 - 0.35 = 0.75
P(X|Y) = Decrease in her probability of failing = 0.35
P(X|Y') = Probability that she will fail the course if she does not have a tutor
P(X) = P(X|Y) × P(Y) + P(X|Y') × P(Y')
P(X) = 0.35 × 0.75 + 0.65 × 0.35
P(X) = 0.2625 + 0.2275
P(X) = 0.49
The probability that Christine fails the course is 0.49
