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

Work out the surface area of the prism.​
Whic type of “cell” is the most commonly used to convert solar energy into electricity
Which expression is equivalent to 5^-6*5^-1
Write an equation of the line that passes through point (3, -2) and has the slope m=-1/2
Write the balanced equation and determine the information requested. Don't worry about state symbols in these reactions. The number of moles and the mass (in mi
Find an equation of the line that satisfies the given conditions. Slope 2/5 ; y-intercept 8
3.A ball is thrown straight downward with a 4.An astronaut drops a hammer from 2.0 meters above the surface of the moon. If the speed of 0.50 meter per second f
The K.E of a body becomes 4 times its initial value. The new linear momentum will be: (a) Same as initial value (b) Four times the initial value (c) Twice the
Does anyone have a representation of the Pytagorean theorem
Forral Company has never paid a dividend. But the company plans to start paying dividends in two years-that is, at the end of Year 2. The first dividend is expe