bekah5332
bekah5332
04-02-2017
Mathematics
contestada
I'm lost.. How do you even start it???
Respuesta :
konrad509
konrad509
04-02-2017
[tex]2x+y=4\\ -x+y=1\\\\ 2x+y=4\\ \underline{x-y=-1}\\ 3x=3\\ x=1\\\\ 1-y=-1\\ y=2 [/tex]
Answer Link
wolf1728
wolf1728
04-02-2017
A) 2x + y = 4
B) -x + y = 1
Multiply B) by 2
B) -2x + 2y = 2 then add to A)
A) 2x + y = 4
3 y = 6
y = 2
B) -x + y = 1
-x +2 =1
x = 1
Answer Link
VER TODAS LAS RESPUESTAS ( 13+ )
Otras preguntas
The parking lot of a store has the shape shown. All angles are right angles. What is the area of the parking lot?
Which of the following are true about bacteria? Select all that apply. Bacteria are all around you. Bacteria can helpful or harmful. Bacteria are multicellular
Prescription drugs account for 25% of all healthcare-related costs. true or false
P = $1400,300 r = 7 1/2% t = 4 what is i ? $4.29 $429.00 $4290.00
What type of disease causing organism is so small you must use a microscope to see it? A) carryon B) Pathogen C) protozoa D) vices
what is the quotient of -3/8and-1/3?
Hannah is 3 years older than twice her brother Joey’s age. Joey is 2 years old. How old is Hannah? Show all of your work! The number of students is five more
Rubber on floor tile has a coefficient of kinetic friction of 1.0 and a coefficient of static friction of 2.0. how much force would a 3.5 lb. robot need to prod
If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18
When a rectangle is dilated, how do the perimeter and area of the rectangle change?
