ciaralockhart07 ciaralockhart07

07-01-2021
Mathematics

contestada

Is (-10, 10) a solution to this system of equations?
18x + 20y = 20
20x – 2y = 9
yes
no

Respuesta :

amyn8998 amyn8998

07-01-2021

Answer:

No

(The first system is correct but the second one is wrong)

Step-by-step explanation:

You can plug (-10,10) into these equations

a) 18(-10)+20(10)=20

-180+200=20

20=20

b) 20(-10)-2(10)=9

-200-20≠9

-220≠9

Answer Link

cbass710 cbass710

29-01-2021

Answer: bob

Step-by-step explanation: bob

Answer Link

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