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Ipatiy [6.2K]
2 years ago
13

The ratio of boys to girls in a class is 2:3 There are 6 more girls than boys in the class. How many girls are in the class?

Mathematics
2 answers:
kolbaska11 [484]2 years ago
7 0

Answer:

4

Step-by-step explanation:

ratio= 2:3

2   :    3

B   :   G

0    :   6

3*2=6

2*2= 4

Harlamova29_29 [7]2 years ago
3 0

Answer:

18 girls

Step-by-step explanation:

Since girls have one more unit of ratio than boys, and there are 6 more girls in class,

1 unit = 6 people

2 units = 12 people

3 units = 18 people

Therefore, plug it back in, there are 12 boys and 18 girls

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45% of the 647 students at Royal Oak High attended the football game. How many students did not attend?
Lostsunrise [7]
First multiply
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3 years ago
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A polling organization contacts 1172 male university graduates who have a white collar job and asks whether or not they had rece
hichkok12 [17]

Answer:

The population in the study are those male university graduates who have a white collar job.

Step-by-step explanation:

This is a common statistics practice, when we want to study something from a population, we find a sample of this population.

For example:

I want to estimate the proportion of New York state residents who are Buffalo Bills fans. So i ask, lets say, 1000 randomly selected New York state residents wheter they are Buffalo Bills fans, and expand this to the entire population of New York State residents.

In this problem, we have that:

Sample of 1172 male university graduates who have a white collar job and asks whether or not they had received a raise atnbsp work nbspduring the past 4 months.

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4 0
3 years ago
at a store, the probability that a customer buys socks is 0.15. the probability that a customer buys socks given that the custom
leva [86]

Answer: Option B

Step-by-step explanation:

First we assign a name to the events:

Event S: a customer buys socks

Event H: a customer buys shoes.

We know that :

P (S) = 0.15

We also know that the probability of S given that H occurs is:

P(S|H) =\frac{P(S\ and\ H)}{P(H)}=0.20

If two events S and H are independent then:

P (S) * P (H) = P (S\ and\ H)

This mean that if two events S and H are independent then:

P(S|H) =\frac{P(S)*P(H))}{P(H)}

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P(S|H) =0.20  and P (S) = 0.15

0.20\neq 0.15

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3 0
3 years ago
If your good in math please help me
Feliz [49]

Answer:

350.82

Step-by-step explanation:

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The rectangle's area (lw):

7.21*14=100.94

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\frac{1}{2} (6)(8)

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6 0
3 years ago
A manufacturer of televisions subjects the equipment to a comprehensive testing process for all essential functions before the t
Scorpion4ik [409]

Answer:

The probability is   P(X \le 9) =0.9138

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Here C stands for combination hence we are going to be making use of the combination function in our calculators      

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=> P(X \le 9) =0.9138

8 0
3 years ago
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