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marshall27 [118]

4 years ago

14

Tim has $30 he buys pens that cost $2.50 each until he has only 10 left if x represents the number of Penn's purchase by Tim thi

s situation can be represented by the equation 30-2.50x=10 how many pens did Tim buy?

1 answer:

garri49 [273]4 years ago

4 0

The answer to your question is x=8

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CaHeK987 [17]

Multiply 5 for both the numbers in the ratio.

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3 years ago

Suppose we take two different random samples from the same population of test scores. The population mean and standard deviation

denis23 [38]

Answer:

The correct option is (i) I expect the confidence interval based on the sample of 64 data values to be more precise.

Step-by-step explanation:

Consider the provided information.

The sample size is inversely proportional to the standard error of the sample mean decreases. $\sigma_M=\frac{\sigma}{N}$

As the size increase the standard error of the sample mean decreases.

Hence, for greater precision select the confidence interval based on the greater sample of data.

Therefore, we expect the confidence interval based on the sample of 64 data values to be more precise.

The correct option is (i) I expect the confidence interval based on the sample of 64 data values to be more precise.

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3 years ago

Given f(x) and g(x) = f(x) + k, use the graph to determine the value of k.

zalisa [80]

<h3>Answer: C) 4</h3>

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4 years ago

Find the value of x

jarptica [38.1K]

Answer:

x = 51

can't see the problem very well but I'm pretty sure this is the answer.

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

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Answer:

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Step-by-step explanation:

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