I think it's b but i'm not sure!
Answer:
Please Explain
Step-by-step explanation:
13. A school is planning an excursion for all of their students to see the
penguins on Phillip Island. They find a company who can provide
two different types of coaches for the trip: one that holds 34
passengers and one that holds 51 passengers. The coach company
has 8 of the smaller coaches and 4 larger coaches available.
The hire cost $500 for a smaller coach and $700 for a larger coach.
If there are 374 students and teachers going on the trip,
determine the minimum total cost for the coach hire.
Answer:
0.9325
Step-by-step explanation:
Given
n = sample size = 80
p = probability = 0.4
q = 1 – p = 0..6
standard deviation for the proportion = √ (p * q) /n = √(0.4*0.6)/80 = 0.0547
for the proportion mean is 0.4
now we can find z and the probability
P (0.3<mean<0.5) = P((0.3– 0.4)/0.0547 < z < (0.5– 0.4)/0.0547)
P (0.3<mean<0.5) = P(-1.828< z < 1.828)
Using a z table
P (0.3<mean<0.5) = 0.9325
Answer:
k = -7
Step-by-step explanation:
2k+3k-13=-48
5k - 13 = -48
5k = -48 + 13
5k = -35
k = -7
You have 2 denominators so they need to be in the same family 5 and 10 are in the same family you take the biggest denominator and that is your common denominator and 3 + 1 =4 so 4/10 is your answer. (unless you need to simplify)
