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LekaFEV [45]
3 years ago
15

Can someone help me with number 10

Mathematics
1 answer:
AveGali [126]3 years ago
3 0

Answer:

No they don't show direct variation because if you get y alone, the equation you get is in slope intercept form instead of direct variation.

Step-by-step explanation

direct variation: y=kx

y-x=4

 +x     +x

y= 4+x

Not Direct Variation

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Answer:

1.C

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Step-by-step explanation:

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In a sample of n = 6 scores, 5 of the scores are each above the mean by one point. Where is the 6th score located relative to th
den301095 [7]

The mean of a dataset is the sum of all data elements divided by the count of the elements.

The location of the 6th score relative to the mean is 5 points below the mean

Let:

\bar x \to<em> Mean</em>

a \to<em> 5 scores</em>

b \to<em> 6th scores</em>

Given that:

n = 6

The 5 scores that are 1 above the mean implies that:

a = \bar x + 1

The mean of a dataset is calculated using:

\bar x = \frac{\sum x}{n}

So, we have:

\bar x =\frac{5a + b}{6}

\bar x =\frac{5(\bar x + 1) + b}{6}

Open brackets

\bar x =\frac{5\bar x + 5 + b}{6}

Multiply both sides by 6

6\bar x =5\bar x + 5 + b

Make b the subject

b = 6\bar x -5\bar x - 5

b = \bar x - 5

This means that the 6th score is 5 points below the mean

Read more about mean at:

brainly.com/question/17060266

3 0
3 years ago
A group of students made tacos for their class lunch. The number of tacos each student made is shown in the table.
nevsk [136]

Answer:

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Step-by-step explanation:

There are 4 that apply! Jackie and many both made 6 and Marta made 4 so the ratio is 6:4! Vinny and Marty's combined is 6 and Vinny and evelyn's combined is 4 so the ratio is 6:4!

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goblinko [34]
D.  5/12 is your answer
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