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3 years ago

PLEASE HELP...THANKYOU IN ADVANCE <33

Mathematics

1 answer:

SSSSS [86.1K]3 years ago

6 0

Answer:

I think is A 95

Because: 180-(35+50) = 95

Step-by-step explanation:

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movie tickets cost $9.95 for adults and $6.75 for kids they buy 2 adult tickets and 4 students and $28 popcorn

Harrizon [31]

Answer:

the total is $153.9

Step-by-step explanation:

The total for the adults is $19.9

The children $27

Popcorn $224

$9.95×2=$19.9

$6.75×4=$27

$28×6=$168

6 0

3 years ago

How many ways can a president and Vice President be selected from a class of 12?

Mars2501 [29]

for president, we have 12 possible options

12_

Once we’ve decided on a president we only have 11 possible people to choose from for vice president

12_11

multiplying these options together gives us:

12•11= 132

So the answer is C.132

8 0

3 years ago

Read 2 more answers

What is 4180 rounded to the nearest thousand

lina2011 [118]

4180 rounded to the nearest thousand is as much as 4000. It's because 4180 is closer to 4000 than to 5000.

<span>I hope it will help you with rounding in the future :)</span>

6 0

3 years ago

Read 2 more answers

Beach Bicycles sells two-seater bicycles. Its markup rate is 68%. Which equation represents the new price for a bicycle, y, give

lesantik [10]

Answer:

y = 1.68x

Step-by-step explanation:

The markup rate of a product or service refers to how higher the selling price is than the total production cost. In this case, this company doesn't produce the bikes, instead it purchases them from a wholesaler, distributor or even the factory, and then resells them in order to make a profit.

E.g. Beach Bicycles purchases two-seater bikes at $200 each, and then it will resell them to their customers at 1.68 x $200 = $336. The total markup in this example is $136, which represents $136/$200 = 68% of the purchase price.

6 0

3 years ago

Given values: 54, 65, 76, 43, 45, 76, 87 12, 23, 34, 67,65, 78, 45, 34. Given 95% confidence and sigma (population standard devi

Brums [2.3K]

Answer:

Option (D) None of the above.

Step-by-step explanation:

We are given the following data:

54, 65, 76, 43, 45, 76, 87, 12, 23, 34, 67,65, 78, 45, 34

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{804}{15} = 53.6$

Sum of squares of differences = 0.16 + 129.96 + 501.76 + 112.36 + 73.96 + 501.76 + 1115.56 + 1730.56 + 936.36 + 384.16 + 179.56 + 129.96 + 595.36 + 73.96 + 384.16 = 6849.6

$S.D = \sqrt{\frac{6849.6}{15}} = 21.4$

Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$53.6 \pm 1.96(\frac{21.4}{\sqrt{15}} ) = 53.6 \pm 10.83 = (42.8,64.4)$

8 0

3 years ago