What is the K for this story Problem? John bought 27 baseball cards for $9. How many baseball cards can he buy with $84?

1 answer:

Nata [24]3 years ago

3 0

Answer:

210

Step-by-step explanation:

9 divided by 27 = .33333 = .4

you would divide 9 by 27 because if you did 27 divided by 9 he would only have 3 cards

84 divided by .4 = 210

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Vitek1552 [10]

Answer:

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Step-by-step explanation:

(11 10/16 - 2 1/16) - 4 12/16

(9 9/16) - 4 12/16

4 .8125 or 4 13/16

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zhuklara [117]

Using z-scores, it is found that the unusual values are those that are less than 124.

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The z-score of a measure X in a data-set with mean $\mu$ and standard deviation $\sigma$ is given by:

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

The z-score measures how many standard deviations X is from the mean.
Measures that are<u> more than 2 standard deviations from the mean</u> are unusual.
Z < -2 means that the measure X is unusually low.
Z > 2 means that the measure X is unusually high.

In this problem: