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2 years ago

What is the selling price if the cost is $1,260.45 and the markup is $396.00

Mathematics

2 answers:

iren2701 [21]2 years ago

5 0

The answer is 1656.45

Oliga [24]2 years ago

4 0

Add the cost $1260.45 and $396 to get a selling price of $1656.45.

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Fast-food restaurants spend quite a bit of time studying the amount of time cars spend in their drive-throughs. Certainly, the f

melisa1 [442]

Answer:

For the 99th percentile, we have X = 206 seconds.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 138.5, \sigma = 29$

99th percentile:

Value of X when Z has a pvalue of 0.99. So we use $Z = 2.325$

$Z = \frac{X - \mu}{\sigma}$

$2.325 = \frac{X - 138.5}{29}$

$X - 138.5 = 29*2.325$

$X = 205.92 = 206$

For the 99th percentile, we have X = 206 seconds.

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2 years ago

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Delicious77 [7]

Answer:

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Step-by-step explanation:

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2 years ago

How many cups of water in 10 glasses of lemonade?

Ksju [112]

The answer is 10 because there is 8 ounces in both a glass and cup

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3 years ago

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Scrat [10]

So, questions 1 through 3 are pretty vague and you can basically put whatever you think. But... as a hint you might want to base your answers to 1 through 3 on question 4, which is more specific and gives you some clues.

For example, question 2 asks "When do people usually need Kleenexes?" Question 4 basically answers this for you by saying "...blah blah blah are used throughout the duration of a cold." So you could easily say that people usually need Kleenexes when they are sick. You could use this same type of reasoning to answer questions 1 and 3.

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2 years ago

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Prove algebraically that the sum of the squares of two consecutive intgers is always an odd number

musickatia [10]

Answer:

See below.

Step-by-step explanation:

Let's let our first integer be n.

Then, our second, consecutive integer must be (n+1).

We want to prove that the sum of the square of two consecutive integers is always odd.

So, let's square our two expressions and add them up:

$(n)^2+(n+1)^2$

Square. Use the perfect square trinomial pattern. So:

$=n^2+(n^2+2n+1)$

Combine like terms:

$=2n^2+2n+1$

Notice that the first term 2n² has a 2 in front. Anything multiplied by 2 is even. So, regardless of what integer n is, 2n² is always even.

Our second term 2n also has a 2 in front. So, whatever n is, 2n is also always even.

So far, 2n² and 2n are both even. Therefore, the sum of 2n² and 2n is also even.

Lastly, we have the constant term 1. It doesn't matter what n is, we know that (2n² + 2n) is definitely and is always even. So, if we add 1 to this, we will get an odd number.

Q.E.D.

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3 years ago