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 ( 76+ )
Otras preguntas
what is the discriminant of the quadratic equation 0 = 2x2 3x – 5? –37 –31 43 49
which statement best describes the equation caco3 2hcl → cacl2 co2 h2o? caco3 is a reactant; it is present before the reaction occurs. cacl2 is a reactant; it i
Which of the following countries does not have issues with coral reef damage? Maldives Myanmar Indonesia
true or false? Publishing to the Internet involves uploading your files to a remote hosting computer.
Why did the jacobins have so many enemies
hello I'm really stuck on this question can someone please help me
In world system theory, nations that have been totally left out of the development of capitalism and allowed to stagnate are called
Which best states the overall structure of Walden? A.The work describes the effect spending time in nature has on Thoreau, and then explains why it has that eff
Rills, gullies, streams, rivers and tributaries are all caused by
What two steps should a student take before closely reading text?
