kyrarix kyrarix
  • 03-12-2018
  • Mathematics
contestada

Solve the system of linear equations. What is the value of y?



9x−6y=15

6x+21y=60

Respuesta :

goldeneagle1
goldeneagle1 goldeneagle1
  • 03-12-2018

Answer:

y = 5

y = 2.2

Step-by-step explanation:

For the first one:

9x = 9 x1 = 9

9 - 6 = 3

3y = 15

15 ÷ 3 = 5

y = 5

For the second one:

6x = 6 x 1 = 6

6 + 21 = 27

27y = 60

60 ÷ 27 ~ 2.2

y = 2.2

Answer Link

Otras preguntas

When Perseus set out to slay Medusa, he did not know that Polydectes wanted to marry his mother. * true or false
Please helppp, I forgot how to do this
7) 60° x + 83 40° A) 7 C) -5 B) -11 D) -3
Please select the word from the list that best fits the definition To is to exchange goods without the use of money.
Maria claims that ABE ~ ACD. Select two of the transformations or series of transformations that supports Maria's claim and maps ABE to ACD
plz give work below​
A raccoon consumes 500 calories of food. 50 of those calories are converted to biomass. In other words...?
Analyze the data to identify the mathematical relationship between the amplitude and energy of a mechanical wave. If mechanical wave A has an amplitude of 1 cm
how does technology give a society power?
A snail desperately needs to make it to the center garden to avoid being squashed by students once school starts. If the garden is 6 meters away, and the snail'