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 ( 14+ )
Otras preguntas
Rewrite the repeated addition problem as a multipication problem and solve. 9/12+9/12=?
A worm moves 3/8 inches five minutes for one hour and 25 minutes how far does a worm moving this time explain
Cuando mis padres _____ a guatemala, mis hermanosy yo no pudimos acompanarlos a. viajaisb. viajamosc. viajan d. viajaron
find the value of the trigonometric function sin (t) if sec t = -4/3 and the terminal side of angle t lies in quadrant II
What is the length of arc S? (The angle in the figure is a central angle in radians)
Line m passes through the point (-5,4) And has a slope of 1/3 What is the equation of the line m in standard form?
What can engineers do to prevent structures from collapsing
Farewell to Manzanar is A. a fictional short story. B. an action adventure based on a true story. C. a non-fiction historical memoir. D. an historical fictio
Use the free energies of formation given below to calculate the equilibrium constant (K) for the following reaction at 298 K. 2 HNO3(aq) + NO(g) → 3 NO2(g) + H2
Going to college can be expensive because of the high cost of books and tuition
