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Hatshy [7]
3 years ago
15

Penny solved an equation by subtracting 6 from each side of the equation and then dividing each side by 5.

Mathematics
1 answer:
VikaD [51]3 years ago
3 0

Answer:

Step-by-step explanation:

In order to solve for x, she had to first subtract 6 on both sides of the equation.  Then divide by 5 on both sides of he equation.  After the division part, she was able to successfully isolate x.

The equation she had to solve was     (C)  5x+6=21

First step:  Subtracting 6 on both sides of equation resulted in

5x = 15

Second step:  Dividing both sides of the equation by 5 resulted in

x = 3

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If y = kx, what is the value of k if y = 20 and x = 0.4?<br><br> A)5<br> B)8<br> C)9.6<br> D)50
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Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

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