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3 years ago

Please help with proportional relationships!!! (Photos)

Mathematics

1 answer:

Travka [436]3 years ago

5 0

Answer:

yes, the question is proportional. if you multiply 9.50 by 2 you get 19 and so on and so forth. the constant rate is 9.50

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The public library surveyed 200 people about their favorite movie. If 25% of the people chose science fiction, how many people c

snow_lady [41]

50 people chose science fiction movies

6 0

3 years ago

ANY HELPPPPP PLZ<br> I WILL AMRK YOU BRILLLLLLLLL

Stella [2.4K]

Answer:

The correct answer is 27

Step-by-step explanation:

- 5a - b

- 5(-6) - 3

30 - 3

= 27

5 0

3 years ago

P- (9-(m + q)); use m=4, p=5, and q=3

Tcecarenko [31]

Answer:

Step-by-step explanation:

p-(9-(m+q))

5-(9-(4+3))

=5-(9-7)

=5-2

6 0

3 years ago

Most people buy a house with cash

Leokris [45]

Other people (regular people) pay houses off over the years or write a check

3 0

4 years ago

Suppose that 10% of the undergraduates at a certain university are foreign students, and that 25% of the graduate students are f

Deffense [45]

Answer:

0.6154 = 61.54% probability that the student is an undergraduate

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Foreign

Event B: Undergraduate.

There are four times as many undergraduates as graduate students

So 4/5 = 80% are undergraduate students and 1/5 = 20% are graduate students.

Probability the student is foreign:

10% of 80%

25% of 20%. So

$P(A) = 0.1*0.8 + 0.25*0.2 = 0.13$

Probability that a student is foreign and undergraduate:

10% of 80%. So

$P(A \cap B) = 0.1*0.8 = 0.08$

What is the probability that the student is an undergraduate?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.08}{0.13} = 0.6154$

0.6154 = 61.54% probability that the student is an undergraduate

8 0

3 years ago