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3 years ago

Can someone help me with this question please (brainiest and 50 points)

Mathematics

2 answers:

seropon [69]3 years ago

7 0

Answer:

Stephanie read more than 7 books.

Step-by-step explanation:

We are given the equation y= 8x

First, lets break down the equation given.

y represents the total amount of points.
x represents each book read.

Since Stephanie gained a total of 72 points, then y = 72. The value of x is unknown and is the value that we need to figure out as it will tell us how many books Stephanie read.

72= 8x

Simply divide both sides by 8.

$\frac{72}{8} =\frac{8x}{8}$

$9=x$

Remember, x represents each book read. Stephanie read 9 books. So, Stephanie read more than 7 books.

sergiy2304 [10]3 years ago

5 0

Answer: Stephanie read more than 7 books because 8 points for 9 books each is equal to 72 points, which is the total amount of books she read.

Step-by-step explanation:

72 ÷ 8 × 9

x = 9

Hope this helped! :D

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Theoretical probability is approximated by conducting trials and recording the ratio for the number of occurrences of the event

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4 years ago

89,74,92,80, the mean score is 79 what the number is missing???

katrin2010 [14]

The missing number in the given data that has a mean of 79 is: 60.

The mean of a data set is simply the average, that is, it is the sum of all data values divided by the number of data values.

Let x represent the missing number in the data. If the mean is 79, we would have the following:

(89 + 74 + 92 + 80 + x)/5 = 79

(335 + x)/5 = 79

335 + x = 5(79)

335 + x = 395

x = 395 - 335

x = 60

Missing number is: 60.

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2 years ago

The following table provides information about the median income in four states in

photoshop1234 [79]

Answer:

$68,213

Step-by-step explanation:

The median is the middle value number.

So you need median for Virginia.

First lets see how index and income are connected.

To do this divide the income by the index to see if you have a constant value you can use.

535.434783 = Arkansas

535.381944 = Alabama

535.58 = Arizona

535.669236 = Alaska

535 is constant in all of these.

Let's multiply the index by 535.

127.2*535 =68212.5

For median income, you need a whole number so lets round up.

68213

So Virginia would have a median income rate of $68,213

If you have anymore questions, don't be afraid to reach out and I hope that helps!

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3 years ago

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amid [387]

Answer:

Is in the attached image.

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3 years ago

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Archy [21]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers