oliveche000 oliveche000
  • 01-05-2015
  • Mathematics
contestada

3x+2y=11
2x+5y=22

help ?

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 01-05-2015
so assume that x=x and y=y in both equations

use elimination

3x+2y=11
2x+5y=22
multiply first equation by -2 and multiply second equaiton by 3
-6x-4y=-22
6x+15y=66
add together
0x+11y=44
11y=44
divide by 11
y=4
subsite
3x+2y=11
3x+2(4)=11
3x+8=11
subtract 8
3x=3
divide by 3
x=1



x=1
y=4

in (x,y) form
(1,4)
Answer Link

Otras preguntas

What organelle controls a cell's activities?
What is 5.6 divided by 4.48
Erica used friendly numbers to find 43-19 she added 1 to 19 and subtracted 1 from 43 what is Erica's error
An object moving in a circle at a constant speed is accelerating. Why? A. because it is going faster B. because it has constant velocity C. because its directio
How do the actions of earthworms improve soil quality? How does this impact the amount of biomass an ecosystem can support?
The metric unit of force is the A. newton. B. kilogram. C. gram. D. nanometer.
A tablet weighs 1.23 pounds. What is its weight written as a mixed number?
how to write 2000 using exponents
Explain how to use the combine place values strategy to find 223-119
What is 230 in scientific notation