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RSB [31]
3 years ago
15

Kelly can type 120 words in 30 minutes how many words can she type in 1 minutes at this rate

Mathematics
2 answers:
notka56 [123]3 years ago
7 0
40 I think is the answer
Alik [6]3 years ago
7 0
Take 120 and divide by 30

which is = 4

Hope this helps (:

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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kirill115 [55]

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Step-by-step explanation:

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Is the answer a, b, c, or d?
lbvjy [14]
I hope this helps you

6 0
3 years ago
The table below represents the closing cost of ABC for the last 5 days. What is the r -value of the linear regression that fits
Gnoma [55]

Answer:

The correct option is D.

Step-by-step explanation:

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y=bx+a

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b=\frac{n(\sum xy)-(\sum x)(\sum y)}{n(\sum x^2)-(\sum x)^2}

a=\frac{(\sum y)(\sum x^2)-(\sum x)(\sum xy)}{n(\sum x^2)-(\sum x)^2}

The formula of r is

r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n(\sum x^2)-(\sum x)^2][n(\sum y^2)-(\sum y)^2]}}

The values are

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Using above formula, we get

r=-0.85650

Therefore option D is correct.

3 0
3 years ago
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