What is the answer of −7x+1=−20

Mathematics

2 answers:

KonstantinChe [14]3 years ago

4 0

Answer:

x = 3

Step-by-step explanation:

Subtract 1 from each side, so it now looks like this: -7x = -21
Divide each side by -7 to cancel out the -7 next to x. It should now look like this: x = 3

I hope this helps!

Pie3 years ago

3 0

Answer:

Step-by-step explanation:

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Mean absolute deviation (MAD) of the data set indicates the average distance of all elements from mean of the data set.

MAD of the data represented by dot plot in the picture will be Option A.

Elements in the given dot plot are,

3, 4, 5, 5, 5, 5, 5, 5, 6, 7

Steps to be followed for the mean absolute deviation of this data set.

Find the mean of the data set
Find the absolute distance of each element from the mean
Find the average distance of all the elements which will be MAD of the data set.

Step - 1 :

Mean of the data set = $\frac{\text{Total of the data}}{\text{Total number of elements}}$