meababy2009ow9ewa meababy2009ow9ewa
  • 12-02-2018
  • Mathematics
contestada

1. Solve the system by the elimination method. Check your work. R - 9S = 2 3R - 3S = -10 {(-4, -8/3)} {(-4, -3/2)} {(-4, -2/3)}

Respuesta :

Аноним Аноним
  • 12-02-2018
R - 9S = 2 --------- (1) 
3R - 3S = -10 -----(2)

(1)x 3
3R - 27S = 6 --------(1a)

(1a) - (2):
-3s - ( -27s) = -10 - 6
- 3s + 27s = -16
24s = -16
s = -2/3 ---- sub into (1)
R - 9(-2/3) = 2
R + 6 = 2
R = 2 - 6
R = -4

Ans: R = -4, S = -2/3 [Answer: (-4, -2/3) ]
Answer Link
cineusstanleyy cineusstanleyy
  • 12-02-2018
the correct answer for R and S are
R = - 4
S = - 2/3

( -4, - 2/3)
Answer Link

Otras preguntas

How did Prohibition affect corruption in the early 1900s?
[tex]\sqrt{x} +1=3\\[/tex]
Which statement about the strategies used in this poster is false? The text supports women finding the job that best suits them. The quotation uses an exclamat
A mass 25kg is attached to a spring which is held stretched a distance 120 cm by a force F=300N (Fig. 7-28), and then released. The spring compresses, pulling t
ayo is 37 years old and Abdul salami is 6 years old. how many years ago was the product of their ages 96​
i need help with two questions please, guathmath doesn't seem to help!
Match each environmental factor with the human response for it
Please take a look at the picture
if the set of values represent points on a line, what is the value of a?
Raisins and peanuts, again! Sig’s class was told that their mixture is 80% raisins and 20% peanuts. In Sig’s sample, he counted 48 raisins. About how many peanu