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chubbyxturtle
04.12.2019 •
Mathematics
5x/7 + 5 = 30 solve for x? i can't figure it out.. \:
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Ответ:
5x/7 = 25
Now multiply both sides with 7:
5x = 175
Divide by 5:
x = 35
Ответ:
d) 2.3 to 3.5
Step-by-step explanation:
In this problem, we have that:
The mean is 2.9
The standard deviation is 0.6
One standard deviation below the mean
This is the mean subtracted by one standard deviation.
So this is 2.9 - 0.6 = 2.3
One standard deviation above the mean
This is one standard deviation added to the mean.
So this is 2.9 + 0.6 = 3.5
So the correct answer is:
d) 2.3 to 3.5