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 ( 93+ )
Otras preguntas
what is the 4th term
Decimal multiplication and division by the 10 powers
Is 4cm longer than 4.0cm explain the difference
milliliters in one liter
how do some plants survive the intense desert heat and drought?
Three coins are tossed during an experiment. It is equally as likely that no heads will appear as it is that exactly one head will appear.
what is formed by changing the number of neutrons in an atom
q+r+s, for q=46, s =54
when was remote sensing invented
find the multiple of nine that are less than 100
