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 ( 28+ )
Otras preguntas
Who established a school for navigation?
How much does 3000 kg = to get tons
What holds calcium chloride together? A. hydrogen bonding B. metallic bonding C. ionic bonding D. dipole forces E. van der Waals forces (London dispersion force
which is an example of a physical change* metal rusting*silver tarnishing* water boiling* paper burning
Why was Emmeline Pankhurst significant?
You begin solving the equation 4 – 5x = 59 by subtracting 4 from both sides. Which is the best choice for Step 2?
how do I solve 9 1/9 - 5/6
how do I solve 9 1/9 - 5/6
Which measurement is not equal to 3 m 30 dm or 300 cm or 3000 mm or 3000 cm
How many seconds in 2.6 days
