Q7. What would be the best next step in solving the following equation for x? 8x - 4 = 10
1 answer:
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Hey! I'll provide the steps required.
First, solved the proportion by cross multiplication.
Then use the commutative property to reorder the terms as well as multiply the numbers.
90x = 9720
Finally, divide it by 90.
x = 108
First, solved the proportion by cross multiplication.
Then use the commutative property to reorder the terms as well as multiply the numbers.
90x = 9720
Finally, divide it by 90.
x = 108
Answer:
Step-by-step explanation:
Given
The above table
Required
The standard deviation
First, calculate the class mid-point. This is the average of the class interval.
The mid-point x is:
So, we have:
Calculate mean
The standard deviation is: