keiraervin keiraervin

12-02-2020
Mathematics

contestada

Solve the system of equations.
0.8x + 0.1y = -2
-0.17x + y = -3.66
A( 4, 2)
B(2, 1)
C(-2,-4)
D(-10, 12)
E(-12, 12)

Respuesta :

wolf1728 wolf1728

15-02-2020

Answer:

A) .8x + .1y =-2

B) -.17x + y = -3.66

We multiply A) by -10

A) -8x -y = 20 then add it to equation B)

B) -.17x +y = -3.66

-8.17x = 16.34

x = -2

-1.6 + .1y = -2

.1y = -.4

y = -4

Answer is C)

Step-by-step explanation:

Answer Link

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