Question 25 the sum of three numbers is 79 . the second number is 9 less than the first. the third number is 2 times the first.
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The coefficient of 
is 2.
_____
You have used the symbol for "times." If you mean x (the variable), the answer is still the same. The coefficent of
is still 2.
_____
You have used the symbol for "times." If you mean x (the variable), the answer is still the same. The coefficent of
You will need data that logs the changes in speed from various, consecutive events. Which you can use to calculate the difference in speed and determine wether the speed is increasing or increasing.
Otherwise, you only need the initial and finak value to find the difference.
Otherwise, you only need the initial and finak value to find the difference.