The answer is: Substitution property of equality.
The explanation is shown below:
1. To solve this problem you must apply the proccedure shown below:
2. When you clear the variable x from the first equation, and subtitute it into the second equation, you obtain:
<span>3x−2y=10
x=(10+2y)/3
4x−3y=14
</span>4[(10+2y)/]−3y=14
<span> y=-2
3. When you subsitute y=-2 into the first equation and clear the x, you have:
x=2
</span>
Answer:
Negative Association.
Step-by-step explanation:
Association between variables:
Association between variables can be classified as positive or negative.
Positive: Both move in the same direction, that is, either both increase or both decrease.
Negative: The variables move in opposite directions, one increases and the other decreases.
In this question:
As the first increases the second decreases, that is, they move in opposite directions, so it is a Negative Association.
Answer:
The range is 69
Step-by-step explanation:
We have that the least value of the data set is 20 and the highest value is 89.
From the available information, we can only find the range of the data set.
The range is the highest value minus the least value.
This implies that, the range is 
1)80
2)55
3)D
4)F
5)-20
6)B
Hope that helps
Answer:
8/5
Step-by-step explanation:
