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 ( 59+ )
Otras preguntas
What percent of the buildings are no taller than 345 meters?
what makes an efficient and effective teaching with regard to learners role?
The fundamental measuring unit of Electromagnetism is? Ampere (electric current) Volt (electric potential) Coulomb (electric charge)
Using what you learned in the table about word origins and word parts, match the correct meaning to each word. Tiles illegally imported or exported goods power
HELPPP ASAP!!! A model rocket is launched from a raised platform at a speed of 144 feet per second. Its height in feet is given by: h(t) -16t2 144t + 20 (t=se
Allen is a financial advisor. He would like to show his clients how much their investment has increased over the past year. What type of graph should he use? a
The following are the Consumer Price Index (CPI) for the years 1991-1993. All of the values use a reference year of 1986. Year CPI 1991 110 1992 120 1993 135 Wh
Good morning!what do u mean by introverted person?
A programmer used Scratch to create a program with three frog sprites. If a user clicks any of the frogs, they make a "boing" sound and glide to a random positi
Do we as a society take white collar crime seriously enough? How should it be punished/deterred?
