Lheart
Lheart
04-04-2014
Mathematics
contestada
If 2x+z=2y and 2x+2y+z=20 what is the value of y?
Respuesta :
Аноним
Аноним
05-04-2014
[tex]2x+z=2y\to2x=2y-z\\\\substitute\ to\ 2x+2y+z=20:\\\\(2y-z)+2y+z=20\\2y-z+2y+z=20\\4y=20\ \ \ \ /:4\\y=5\to answer[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 48+ )
Otras preguntas
6 metres cost 3.00. what is the cost of 1 metre?
If you know two points on a line, how can you find the rate of change of the variables being graphed?
Can someone help solve, 3y+6=30-7y
E = mv^2 Work out the value of E when m = 3 and v = 10
How do I write 4.76325 as a fraction?
A person walks 25 m west and then 45 m at the angle of 60 degrees north of east what is the magnitude of the total displacement?
Stem-and-Leaf Plots question: How many swimmers were younger then 30 Stem -- Leaf 0 1-- 1 2-- 3,9 3 --
name three roles you play in your relationships with others. explain when you play each role.
Brittany placed a cold piece of butter on a hot ear of corn. The butter began to melt. The butter melted when it came into contact with the corn because heat wa
What chemical compound is C2HsOH?
