ilovecandy1 ilovecandy1

16-01-2017
Mathematics

contestada

Solve using elimination

10x - 5y = -20
-5x + 5y = -15

Respuesta :

doodle10 doodle10

16-01-2017

-5x + 10x + 20 = - 15
5x + 20 = - 15
5x = - 35
x = - 7

(10 x - 7) - 5y = - 20
-70 - 5y = - 20
-70 = - 20 + 5y
-50 = 5y
-10 = y

Answer x=-7 and y=-10

Answer Link

Otras preguntas

What is the volume of a sphere with a radius of 9 inches

SOLVE ANY BUT PUT THE NUMBER WITH IT J=7k+5 1. When the value of k increases by 2, by what amount does the value of j increase? 2. what is ture? 1/6 = 0.16 0.08

The term "Iron Curtain" was used by Winston Churchill to describe a divide between which of these? colonies and colonial powers Allied- and Axis-controlled terr

Which caused the United States to declare war on Mexico in 1846? A. speeches in favor of war from Henry Clay and others in Congress B. the belief that Americ

TRUE OR FALSE The church was central to the life of medieval man. True False

what two numbers add to 9 and multiply to -70

How many milk bottles are standing on the porch when Fred Flintstone puts out the cat?

On which group will a progressive tax place a greater tax burden? poor citizens middle-class citizens wealthy citizens politicians

Simplify the expression. -9 (z+3) -5 (2z+10)

Alice has 1/5 as many miniature cars as Sylvester has. Sylvester has 35 miniature cars. How many miniature cars does Alice have?