2livee
2livee
02-11-2017
Mathematics
contestada
Solve equations with 3 variables
Respuesta :
xisca
xisca
03-11-2017
a+b=3
-b+c=3 if we add these two equations we have a+c=6......(4) and from the 3rd equation we have a+2c =10
Now subtract (4) from (3)
a+2c=10
a+c=6 so a cancels out you have c=4 so a is 2 and b is 1
a=2
b=1
c=4
Answer Link
VER TODAS LAS RESPUESTAS ( 97+ )
Otras preguntas
A scientist is studying a sample of matter. The matter has no definite shape or volume, and it can conduct an electric current. The sample is most likely in whi
Triangle DEF and triangle TUV are congruent triangles. Which statement is known to be true. A.) DE = TU B.) DF = TU C.) DF =UV D.) DE = TV
The mass of a cylinder made of barium with a height of 2 inches depends on the radius of the cylinder as defined by the function m(r)=7.188. Which system of equ
What prompted the United States to join The Cold War.
The random variable x represents the number of phone calls an author receives in a day, and it has a Poisson distribution with a mean of 7.6 calls. What are th
A military base a few miles from a medium-sized city is being decommissioned. The base is a large one, sited along a coastline, and includes some small hills, p
which statement accurately describes the movement of earth's plates due to convection current?
A cylindrical tungsten filament 17.0cm long with a diameter of 1.20mm is to be used in a machine for which the temperature will range from room temperature (20
How you would build a carbon monoxide (CO) molecule?
The measures of one of the angles of a triangle is 35.The sum of the measures of the other two angles is 145 and the difference between their measures is 15. Wh
