Sam1300 Sam1300

02-03-2015
Mathematics

contestada

X+3y=5
-2x-6y=-10

Solve using elimination

Respuesta :

apologiabiology apologiabiology

02-03-2015

slimination
multiply first equaiton by 2
2x+6y=10
add to second equiaotn
2x-2x+6y-6y=10-10
0=0
this is true so therfor they are the same equaiton

so solve
x+3y=5
3y=-x+5
y=-1/3x+5/3

subsituter values for x and get valuse for y

if x=2 then y=1

Answer Link

Otras preguntas

In saudi arabia, the king holds the power to make all decisions on governing. saudi arabia is a. a theocracy. b. an oligarchy. c. an autocracy. d. a democracy.

Question 3 of 10 how can onomatopoeia be used as a form of synesthesia? a. the sound of the word can imitate a visual effect. b. the sound of the word can imita

The epic of gilgamesh does not exactly have a happy ending. certainly the hero, gilgamesh, is not ultimately successful in his quest. why do you think the epic

A lighthouse sits at the wdge of a cliff. a ship at sea level is 550 m from the base of the cliff. the angle of elevation from sea level to the base of the ligh

A tug boat horn emits a frequency of 250 Hz in 18 °C air, which has a speed of sound of 342 m/s. If the tug boat is moving away from a stationary observer at 15

HELP WILL GIVE MANY POINTS (If response is over 175 words you get brainiest) Imagine you are running for Congress during the Great Depression and that you are p

Suppose you have a black male rabbit and a black female rabbit. Each has a dominant gene (F) for black fur and a recessive gene (f) for white fur. What do Mende

In saudi arabia, the king holds the power to make all decisions on governing. saudi arabia is a. a theocracy. b. an oligarchy. c. an autocracy. d. a democracy.

The school is installing whiteboards in 5 classrooms. whiteboards, including their borders, are 6 feet wide by 10 feet long. the borders, which are 0.5 ft wide,

Ellie hit a tennis ball into the air. the path of the ball can be modeled by y=-x^2+8x+2 where y represents the height in feet of the ball x seconds after it is