Answer:
x=6
Step-by-step explanation:
Mean is another word for average. It is found by adding up all of the values, and dividing that number by the amount of values you added together.
You have 5 values that get a mean or, average, of 7.4
1) We can write this as the following:
(11+12+5+3+x)/5=7.4
2) To solve, multiply both sides by 5:
11+12+5+3+x=37
3) Now combine all of the numbers on the left:
31+x=37
4) Now subtract 31 from both sides:
x=6
30/5 is also 30 divided by 5 which is 6
-2-w is equivalent to -24 - 12w all you have to do is simplify the expression!
You should not calculate the routines but instead you should calculates how much it is front and center.
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