3 years ago

It took Perla 8 games to score 30 points.At that rate,how many games will it take her to score 45 points?

Mathematics

1 answer:

BARSIC [14]3 years ago

4 0

Answer:

I am pretty sure you can set up a proportion.

12 games is the answer

Step-by-step explanation:

8 X

_ * __

30 45

8*45=30x

360=30x

x=12

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Answer:

The raw score for his exam grade is 99.69.

Step-by-step explanation:

Given : The professor announced that the mean for the class final exam was 88 with a standard deviation of 7. Given Daniel's z score of 1.67.

To find : What is the raw score for his exam grade?

Solution :

The formula use to find the z-score is

$z=\dfrac{x-\mu}{\sigma}$

Where, z=1.67 is the z-score

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$\sigma=7$ is the standard deviation

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Substitute the values,

$1.67=\dfrac{x-88}{7}$

$1.67\times 7=x-88$

$11.69=x-88$

$x=88+11.69$

$x=99.69$

Therefore, the raw score for his exam grade is 99.69.

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Step-by-step explanation:

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