Answer:
3.2
Step-by-step explanation:
You have this man keep doing what u doing
The action that creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated is " Multiply the second equation by -4 to get -16x - 4y = -80 " ⇒ answer a
Step-by-step explanation:
To solve a system of equation using the elimination method
- Make the coefficient of one variable in the two equations have same values and different sign
- Add the two equation to eliminate this variable
- Solve the resulting equation to find the other variable
- Substitute the value of the other variable in one of the two equations to find the value of the eliminating variable
The system of equation is :
2x + 4y = 14 ⇒ 1st equation
4x + y = 20 ⇒ 2nd equation
You can multiply first equation by -2 to get
-4x - 8y = -28 ⇒ 3rd equation
When you add the second and the third equations x will eliminated
<em>OR</em>
You can multiply second equation by -4 to get
-16x - 4y = -80 ⇒ 3rd equation
When you add the first and the third equations y will eliminated
The action that creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated is " Multiply the second equation by -4 to get -16x - 4y = -80 "
Learn more:
You can learn more about the system of equations in brainly.com/question/2115716
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Answer:
Fig A
Step-by-step explanation:
in fig A, we can see that the subset that represents "trees", lies inside the subset that "has leaves". Hence in figure A, we can say that "All trees have leaves" or "if it is a tree, it has leaves"
in fig B however, we see that "has leaves" is inside of "trees", this means that the area in-between "has leaves" and "tree" represents the subset that there are trees without leaves. This is in contradiction to the statement "if it is a tree, it has leaves", hence this is not the answer.
