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tamaranim1 [39]
3 years ago
14

Theo is using this spinner to predict the favorite movie genre of randomly chosen students in his school. If Theo spins the spin

ner 60 times, how many times should he expect it to land on "Action"?
a) 10
b) 12
c) 15
d) 20
Mathematics
2 answers:
fenix001 [56]3 years ago
7 0

Answer:

<h2>c) 15</h2>

Step-by-step explanation:

If there are 6 genre on the spinner, that represents the total possible outcomes, and Action is only one of them, so its probability in one try is

P_{action} =\frac{1}{4}

Then, he tried 60 times, that means we have to multiply the simple probability to the total number of trials.

E=60 \times \frac{1}{4}= 15

He should expect to land on Action 15 times out of 60.

Therefore, the right answer is c) 15.

marusya05 [52]3 years ago
3 0

Answer:

Option B.

Step-by-step explanation:

In the question the number categories on the spinner are not given.

Consider there are 5 different categories on the spinner.

A = Spinner land on "Action".

So, probability of  land on "Action" is

P(A)=\frac{1}{5}

Number of spins, n= 60 times

The expected number of land on "Action" is

\text{Expected value}=n\times P(A)

\text{Expected value}=60\times \frac{1}{5}

\text{Expected value}=12

Therefore, the correct option is B.

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Simply the complex fraction 2/3/1/3
Alexxandr [17]

Answer:

the answer is 2

Step-by-step explanation:

2/3/1/3 were going to take 1/3 multiply it by 2/3 and switch the nume and the deno.

2/3 x 3/1 = 6/3

6/3 = 2


3 0
3 years ago
An enclosed gas exerts a pressure P on the walls of the container. this pressure is directly proportional to the temperature T o
Hitman42 [59]

Answer:

d. 60

Step-by-step explanation:

According to Gay Lussac's Law

P1/T1=P2/T2  where

P1= Pressure at the start, T1 = initial Temperature

, P2= Final Pressure, T2 =Final Temperature

T1=P1*T2/P2= 7*420/49=60

6 0
2 years ago
A carpenter needs 9.3 feet of rope for a project. How much will the carpenter spend if the rope costs $3.82 per foot?
Vlada [557]

The carpenter spend 35.53 $ of rope for a project.

To find the cost of rope for a project.

What is arithmetic?

The branch of mathematics dealing with the properties and manipulation of numbers. a science that deals with the addition, subtraction, multiplication, and division of numbers. Fractions, decimals, percentages, fractions, square root, exponents, and other arithmetic operations are used to achieve mathematical simplifications.

Given that:

For a project carpenter needs 9.3 feet of rope.

Per foot of cost of the rope is $3.82.

So by calculation

1 foot of rope= $3.82.

9 foot of rope=9*3.82 $

9 foot of rope=35.53 $

So, the carpenter spend 35.53 $ of rope for a project.

Learn more about arithmetic here:

brainly.com/question/28189930

#SPJ1

Option is missing

O $35.53

O$44.84

O$45.84

O $355.30

6 0
1 year ago
What is the arc measure of BDC in degrees?
never [62]

Answer:

213

Step-by-step explanation:

7 0
3 years ago
The LCM of three numbers is 7920 and their GCD is 12. Two of the numbers are 48 and 264. Using factor notation find the third nu
svlad2 [7]

Answer:

The third number is 180.

Step-by-step explanation:

Let the third number be 9x where x is an integer.

48 = 2*2*2*2*3

264 = 2*2*2*3*11

9x = 3*3*x

2*2*2*2*3*3*11*x = 7920y where y is an integer

1584x = 7920y

so x = 7920y / 1584= 5y.

Now the GCD is 12  so x must have  4 as one of its factors.

Also x is a multiple of 5 so it could be 20 then y  would be 4.

If x = 20 then the third number is 9*20 = 180.

This checks out OK.

4 0
3 years ago
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