Answer: The average age is 7.1 years.
This problem is an example of when we need to take a weighted average. We simply can't just find the average of 5 and 8, because there are different children of each each.
To start, lets multiply the total number of children by their individual ages.
6 x 5 = 30 years
14 x 8 = 112 years
There are 142 years among the 20 years, so divide 142 by 20. This gives us an average age of 7.1 years.
About 96, as it's 50 x 3 for 150 people, so you do 32 x 3 to get 96.
9514 1404 393
Answer:
60,000
Step-by-step explanation:
To find your answer, set all other digits to zero.
60,000
is the value of the digit 6 in the 10 thousands place.
Answer:
250
Step-by-step explanation:
2% of 250 is 5. Hope this helps!
Compare this function to y=ax^2 + bx + c. You can readily see that a=2, b=0 and c=6.
The x-coord. of the vertex is at x = -b / (2a). Subbing the given values for a and b, we get
x = -(0) / (2(2) = 0. At x = 0, y = 6, so the vertex of this parabola is (0,6). It opens upward.
