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Masteriza [31]
3 years ago
7

In a sample of students, 12 out of 24 students in a class wanted a sandwich for lunch. Using the data from the sample, predict h

ow many students would want sandwiches for lunch in a school of 400.
A 200
B 250
C 300
D 100
Mathematics
1 answer:
natka813 [3]3 years ago
8 0

Answer:

200

Step-by-step explanation:

good luck :)

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Alang owns a small business selling ice-cream. He knows that in the last week 62
anzhelika [568]

Step-by-step explanation:

last week there were

62 + 60 + 2 = 124 customers.

that means that the fraction of the customers, who paid by credit card, was

2/124 = 1/62

in situations like that, when we use history data and try to predict future behavior, we use that past experience and extrapolate to a predicted result.

we simply say that we expect the same fraction, 1/62, if customers to use credit cards.

for the absolute number of predicted credit card customers we multiply the predicted number of customers by the expected fraction

1000 × 1/62 = 500/31 = 16.12903226... ≈ 16

so, he expects 16 credit card customers.

5 0
2 years ago
Let the sample space be Upper S equals StartSet 1 comma 2 comma 3 comma 4 comma 5 comma 6 comma 7 comma 8 comma 9 comma 10 EndSe
Marina86 [1]

Answer:

Probability of event E = (4/10) = 0.40

Step-by-step explanation:

Note that n(E) is the number of outcomes in E

n(S) is the number of outcomes in S

And with each outcome having equal likelihood of occurring,

SetS = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}.

n(S) = 10

Event E = {1, 4, 7, 9}.

n(E) = 4

Probability of event E = n(E)/n(S)

Probability of event E = (4/10) = 0.40

Hope this Helps!!

4 0
3 years ago
If you have a mass of 55g that has a volume of 11 ml, what is the density?
Hitman42 [59]

Answer:

D=5g/ml

Step-by-step explanation:

D=M/V

D=55/11

5 0
3 years ago
HWELP ASAP!
exis [7]
You need to find 8.45% of each phone:
A) 0.0845·20=1.69
B) 0.0845·25=2.11
C) 0.0845·10=.85
D) 0.0845·18=1.52
Phone B is 2.11 so your answer is B :)
3 0
3 years ago
Jai and Kim need to collect cans of for for a food drive jai collects (65/100) of the total cans needed, and Kim collects (2/10)
FinnZ [79.3K]

Let t = total number of cans they collected.


(65/100)t + (2/10)t


We can now add the two algebraic fractions.


LCD = 100


See picture.


8 0
3 years ago
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