Which system of equations is equivalent to the following system?
2x + 4y = 14
4x + y = 20
a.2x + 4y = 14
-16x – 4y = -80
b.2x + 4y = 14
- 4x + y = -20
c.4x + 8y = -28
4x + y = 20
d.-2x - 4y = 14
4x + y = 20

A

Step-by-step explanation:

Given :

2x + 4y = 14   eq 1

4x + y = 20 eq 2

if you multiply eq 2 by -4 on both sides, you get

-4 (4x + y = 20) = -4 (20)

-16x -4y = -80 eq3

we can see that eq. 1 and eq 2 together forms the system of equations presented in option A, Hence A is equvalent to the orginal system of equations given in the question.

Step-by-step explanation:

B.

C.

D.

according to this law, when unemployment goes up by 1%, gdp drops by 2%. in the question, unemployment rate goes from 2% to 5%, meaning unemployment goes up by 3%, so the gdp drops by 6%. thus the effect is a drop in gdp by 6%.

step-by-step explanation:

10 you would take 50/ .2

step-by-step explanation: