62 (1178/19) is the answer.
Answer:
<em><u>which</u></em><em><u> </u></em><em><u>type</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>equation</u></em><em><u> </u></em><em><u> </u></em><em><u>just</u></em><em><u> </u></em><em><u>tell</u></em><em><u> </u></em><em><u>we</u></em><em><u> </u></em><em><u>are</u></em><em><u> </u></em><em><u>here</u></em><em><u> </u></em><em><u>to</u></em><em><u> </u></em><em><u>help</u></em><em><u> </u></em><em><u>if we</u></em><em><u> </u></em><em><u>can</u></em><em><u> </u></em>
7x-4=52 is correct because he made 7 times more than Jack which is 7x. For example if Jack made 8 decorations, 7 x (8) = 56. If you subtract 4 from 56 you get 52. Therefore, the equation 7x-4=52 is correct.
The correlation coefficient is -0.87; strong correlation
<h3>How to determine the correlation coefficient?</h3>
The given parameters are:
x = Time spent working out
y = lbs Overweight
Next, we enter the table of values in a graphing tool.
From the graphing tool, we have the following summary:
<u>X Values</u>
- ∑ = 27.1
- Mean = 2.71
- ∑(X - Mx)2 = SSx = 22.569
<u>Y Values</u>
- ∑ = 89
- Mean = 8.9
- ∑(Y - My)2 = SSy = 778.9
<u>X and Y Combined</u>
- N = 10
- ∑(X - Mx)(Y - My) = -114.19
<u>R Calculation</u>
r = ∑((X - My)(Y - Mx)) / √((SSx)(SSy))
r = -114.19 / √((22.569)(778.9))
r = -0.8613
Approximate
r = -0.87
This means that the correlation coefficient is -0.87
Also, the correlation coefficient is a strong correlation, because it is closer to -1 than it is to 0
Read more about correlation coefficient at:
brainly.com/question/27226153
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To find this value, simply substitute the number 10 in for x in your equation:
The answer is 98.