Izab15
Izab15
02-11-2017
Mathematics
contestada
Elimination
4x+5y=-15
-3x-2y=13
Respuesta :
Dreamer4102001
Dreamer4102001
04-11-2017
multiply the first equation by 3 and tge second by 4:
12x+15y=-45
-12x-8y=52
then add the equations:
0x+7y=7
7y=7
y=1
so 4x+5(1)=-15
4x+5=-15
4x=-20
x=-5
Answer Link
VER TODAS LAS RESPUESTAS ( 46+ )
Otras preguntas
Find the domain of the function. Write your answer as an inequality. Or, you may instead write "Empty set" or "All reals" as the answer.
How long does it take a wheel that is rotating at 33.3 rpm to speed up to 78.0 rpm if it has an angular acceleration of 2.15 rad/ s 2?
Find the area of a circle with a radius of 3
Which of the following is the surface area of the right cylinder below radius 6 height 14 A)408pi units^2 B)240pi units^2 C)204pi units^2 D)480pi units^2
In a short story, what usually happens during the climax? a.a character makes a decision or comes to a realization. b.a character is introduced, and the setting
what is the best code editor for python
Since the ball starts out on the ground before being kicked x=0. find the corresponding value for y, in feet.
Help PLEASE!!!!!!!!!!!!
Which of the following is the surface area of the right cylinder below radius 6 height 14 A)408pi units^2 B)240pi units^2 C)204pi units^2 D)480pi units^2
A. Federal Bureaucracy B. Political Party C. Congress D. Supreme Court
