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borishaifa [10]
3 years ago
9

Please help Magan recorded the grade-level and instrument of everyone in the middle school

Mathematics
1 answer:
jeyben [28]3 years ago
5 0

Answer:

Probability = \frac{11}{40}

Step-by-step explanation:

Given

See attachment

Required

The probability that a 7th grader selected will play guitar.

From the attachment, we have:

7th\ graders =11+8+8+13

7th\ graders =40

7th graders that can play guitars are:

Guitars = 11

So, the probability is:

Probability = \frac{Guitars}{7th\ graders}

Probability = \frac{11}{40}

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Answer:

0.891

Step-by-step explanation:

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2 years ago
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50 POINTS! QUICKLY Are the pairs of variables x and y the solutions to the equation x^2–2y=7?
Fittoniya [83]

Hi there!

\large\boxed{(5,8) \text{ and } (1.2, -2.78)}}

We are given the equation:

x² - 2y = 7

To verify if each ordered pair is apart of the function, we can plug in their respective x and y values:

1. (5)² - 2(8) = 7

25 - 16 = 9 ≠ 7. This is NOT correct.

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3. (-4)² - 2(-11.5) = 7

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4. (1.2)² - 2(-2.78) = 7

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3 years ago
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Please help asap<br> find 140% of 82
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Sergeeva-Olga [200]

Answer: hello there here are your answers:

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Step-by-step explanation:

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Help pleaseee :) tyy
STatiana [176]

Answer:

The slope is 4

Step-by-step explanation:

First we pick 2 points (x, y):

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Then, we use the slope (m) formula:

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m = (2 + 2)/(1 - 0)

m = 4/1

m = 4

8 0
2 years ago
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