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Nady [450]
3 years ago
11

A spinner is divided into 5 equal sections labeled 1 to 5. If the spinner is spun 60 times, how many times can you expect the sp

inner to land on 3?
Mathematics
1 answer:
laiz [17]3 years ago
3 0

Answer:

since there are 5 equal sections it will be splitted into 1/5. There is only 1 3 on the spinner. So it is 1/3.

1/3*60=12

You can expect the spinner

to land on 3 12 times

Step-by-step explanation:

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A woman bought some large frames for $16 each and some small frames for $7 each at a closeout sale. If she bought 24 frames for
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Answer:

20 big 4 small

Step-by-step explanation:

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3 years ago
Mr. Altamirano opens an account with a simple interest on an account with $1000 at 3% annually for 9 months. How much interest d
gladu [14]

Answer:

1022.50

Step-by-step explanation:

1000*.03= 30. (12mos interest)

30/4=7.50 quarterly interest

7.50x3 (9mos)= 22.50 interest

7 0
3 years ago
A Gallup Poll in July 2015 found that 26% of the 675 coffee drinkers in the sample said they were addicted to coffee. Gallup ann
emmasim [6.3K]

Answer:

The 95% confidence interval for the percent of all coffee drinkers who would say they are addicted to coffee is between 21% and 31%.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

A confidence interval has two bounds, the lower and the upper

Lower bound:

\pi - M

Upper bound:

\pi + M

In this problem, we have that:

\pi = 0.26, M = 0.05

Lower bound:

\pi - M = 0.26 - 0.05 = 0.21

Upper bound:

\pi + M = 0.26 + 0.05 = 0.31

The 95% confidence interval for the percent of all coffee drinkers who would say they are addicted to coffee is between 21% and 31%.

4 0
3 years ago
X=<br> Length=<br> Width=<br> WILL GIVE BRAINLIEST + 5 star
babymother [125]

Answer:

x = 20

Length = 20ft

Width = 12ft

Step-by-step explanation:

A = 240

x^2 - 8x = 240

x^2 - 8x - 240 = 0

x^2 - 20x + 12x - 240 = 0

x(x-20) + 12(x-20) = 0

(x+12)(x-20) = 0

x = 20

x = -12 (which we discard since x is a length)

So the dimensions are 20ft and 20-8 = 12ft

7 0
3 years ago
Factor the expression.<br><br> 3x + 21
Delicious77 [7]

Answer: 3  ( x + 7 )

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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