TRUEBOSS72
TRUEBOSS72
12-03-2018
Mathematics
contestada
Please help me on this....
Respuesta :
choixongdong
choixongdong
12-03-2018
8x + 4y = 16
x + 7y = 15
multiply second equation by (-8)
-8x - 56y = -120
so now
8x + 4y = 16
-8x - 56y = -120
-----------------add
-52y = -104
y = 2
7(2) = 15 - x
14 = 15 - x
x = 1
answer is C.
(1, 2)
Answer Link
VER TODAS LAS RESPUESTAS ( 34+ )
Otras preguntas
How did the national assembly hope to payoff the national debt?
Explain why cellular respiration adds carbon dioxide to the atmosphere and photosynthesis does not
An evangelical sunday school teacher and a rabbi who live in the same neighborhood might have different political opinions due to what major demographic factor?
How does changing electronegativity affect bond character?
Why did Native Americans develop different cultures? A. Native American leaders decided differences would help identify members of their own tribes.
What does Gregor often think about in the months after his physical transformation?
The pks for the ionizable groups in the amino acid lysine are pk1 = 2.18, pk2 = 8.95, and pk3 = 10.53. what would be the net charge on lysine at ph = 7.0
An implicit equation for the plane passing through the point (-1,-4,5) that is perpendicular to the line l(t) = <1+2t,1+t,5+3t> is
When preparing an unadjusted trial balance using a periodic inventory system, the amount shown for merchandise inventory is:?
can someone help pls
