NaLuShipper4Life NaLuShipper4Life

23-12-2016
Mathematics

contestada

Solve the system using substitution.
x + y = 8
y = 3x

A. (4, 12)
B. (2, 6)
C. (1/2, 3/2)
D. (-4, -12)

Respuesta :

23-12-2016

okay sub equation 2 into equation 1:
so it becomes

x + 3x = 8
4x = 8
x = 2

then 2 + y = 8, therefore y = 6
So the answer is B

Answer Link

Otras preguntas

Scapegoating is when all members of a particular group are viewed in a certain way. 1) True 2) False

In what year did engineers complete the first programmable microprocessor? A. 2001 B. 1971 C. 1986 D. 1994

How do you think scientific knowledge will be different in 100 years?

Who won the 1969 super bowl?

Solve for x. Your answer must be simplified. -4x < 9

What were gender realities like for the working class and poor in the victorian era? a. the husband, wife, and sometimes children had to work. b.men were always

The number placed in front of a formula is called a coefficient. the small number within a chemical equation formula is called a subscript. why do we adjust coe

why were japanese held islands so difficult to conquer in world war11

english question down below

Read the excerpt below and answer the question. Behold, I answer to him who asks, What was God doing before He made heaven and earth? I answer not, as a certain