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LuckyWell [14K]
2 years ago
14

Question 6 of 42

Mathematics
2 answers:
iVinArrow [24]2 years ago
7 0

Answer:

b

Step-by-step explanation:

sineoko [7]2 years ago
7 0
Option B is correct luv
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The manager of a snack bar buys bottled water in packs of 35 and candy bars in packs of 20. Then, she sells the items individual
Zolol [24]
If you do 35 times 4 you get 140. Divide 140 by 20 and you get 7 . Therefore the manager would have to buy 7 packs of candy bars and 4 packs of water bottles
5 0
3 years ago
HELP ASAP
Ludmilka [50]
The answer is a. Because when word phrases say “a number”, they are referring to the variable. For instance, x is the variable so x is “a number”.
8 0
2 years ago
Someone pls help me with this it’s not cut off this time but pls help me
stealth61 [152]
It’s A “9/14”
Explanation:
3/4 is bigger than 9/14
If you graph those two fractions, you can clearly see that 9/14 is one number/block less than 3/4. Hope this helped!
5 0
3 years ago
Please help is it 2/9?​
attashe74 [19]

Answer:

7/9    

Step-by-step explanation:

7/9

4 0
2 years ago
Read 2 more answers
A real estate agent is showing homes to a prospective buyer. There are ten homes in the desired price range listed in the area.
Citrus2011 [14]

Answer:

0.48% probability that all four are new

Step-by-step explanation:

The homes are chosen "without replacement", which means that after a home is visited, it is not elegible to be visited again. So we use the hypergeometric distribution to solve this question.

Hypergeometric distribution:

The probability of x sucesses is given by the following formula:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

In which:

x is the number of sucesses.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

Total of 10 homes, so N = 10.

We want 4 new, so x = 4.

In total, there are 4 new, so k = 4.

Sample of four homes, so n = 4.

Then

P(X = 4) = h(4,10,4,4) = \frac{C_{4,4}*C_{6,0}}{C_{10,4}} = 0.0048

0.48% probability that all four are new

6 0
3 years ago
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