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 ( 38+ )
Otras preguntas
what is the value for the expression -5+ 5
how is a knoll formed
Which two countries were the first to declare war on Germany in WWII?
Why did female factory workers like Charlotte Woodward support the women’s rights movement?
how many kilograms is in 12,321grams
WRITE THIS NUMBER IN WORD FORM 310,763,136 AND100,203
what is a post hoc fallacy?
1.133 g of silver nitrate was heated in an open tube. The silver residue weighed 0.720 g. During the reaction 0.307 g of nitrogen dioxide was also produced. Th
What's 45 out of 58 in percentage?
Write y= 3/4x + 1/2 in standard form. Thanks in advance. Also, could you please briefly explain how you did it, because these questions confuse me. Thank you. A
