Answer:
x = 3, y = 1
Step-by-step explanation:
2y = 2x - 4, so y = x - 2. Substituting this into the bottom equation and solving for x:
x - 2 + 3x = 10
4x - 2 = 10
4x = 12, so x = 3 and y = 1.
Wouldnt it be 10 since its similar to def?
Answer:
What do you mean by a "Good estimate"? There's no picture or questions.
Step-by-step explanation:
Answer:
a. 1965
b. 8 years
Step-by-step explanation:
For answers to questions like these it can work to consider the smallest possible dataset.
<h3>Dataset</h3>
For our purpose, consider the 9 years/values to be averaged to be ...
1, 2, 3, 4, 5, 6, 7, 8 ,9
<h3>Observations</h3>
a. The center value of the data set is 5. Its number is 5-1=4 more than the first one.
The first centered value is from the year 1961 +4 = 1965.
b. The 4 values at the beginning, and the 4 values at the end do not have a corresponding "average" value. That is, 4+4 = 8 values in the series are lost with respect to the number of average values.
8 years of values are lost.
