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3 years ago

10

Rico has $87 in his checking account and Darius asked to borrow $34 to buy a shirt. Rico wants to give him the money and buy a s

hirt of his own that cost $33. Would he have enough money to do so?

1 answer:

Volgvan3 years ago

6 0

Answer:

Yes!

Step-by-step explanation:

87 - 34 = 53

he would have $53 left

53-33 = 20

he would have $20 after buying both shirts

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true or false If x represents a random variable with mean 114 and standard deviation 40, then the standard deviation of the samp

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Answer:

$\mu = 114, \sigma = 40$

We also know that we select a sample size of n =100 and on this case since the sample size is higher than 30 we can apply the central limit theorem and the distribution for the sample mean would be given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And the standard deviation for the sampling distribution would be:

$\sigma_{\bar X}= \frac{40}{\sqrt{100}}= 4$

So then the answer is TRUE

Step-by-step explanation:

Let X the random variable of interest and we know that the true mean and deviation for this case are given by:

$\mu = 114, \sigma = 40$

We also know that we select a sample size of n =100 and on this case since the sample size is higher than 30 we can apply the central limit theorem and the distribution for the sample mean would be given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And the standard deviation for the sampling distribution would be:

$\sigma_{\bar X}= \frac{40}{\sqrt{100}}= 4$

So then the answer is TRUE

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Answer:

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Step-by-step explanation:

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Question 1 (Multiple Choice Worth 5 points) (04.03 MC) The ratio of sugar to flour used in a pudding recipe is 1:3. Which figure

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The figure that shows equivalent ratios for the ratio of sugar to flour would be Figure 2.

<h3>What figure has equivalent ratios?</h3><h3 />

The ratio os sugar to flour is 1:3. An equivalent ratio would be one that is 1:3 or 3:1.

Figure 2's ratios are:

6 :2

9:3

12:4

When all of these are taken to their simplest form, we get:

3 : 1

Figure 2 is therefore an equivalent ratio.

Rest of the question is:

he ratio of sugar to flour used in a pudding recipe is 1:3. Which figure shows equivalent ratios? #1: 3,1. 9,2. 3,15 #2: 6,2. 9,3. 12,4 #3: 9,5. 6,3. 13,1 #4: 9,4. 6,3. 3,2

Find out more on equivalent ratios at brainly.com/question/2328454

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