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 ( 64+ )
Otras preguntas
Read the passage. Savage showed talent at the school and a special interest in African art. While at the school, she received what would be a life-changing opp
A treasury blank may be a 30-year commitment
How to work out a percentage of a price
CADMUS: But your reprisals are too severe! DIONYSUS: Yes, because I am a god, and you insulted me. CADMUS: Gods should not resemble men in their anger! DIONY
David sees that his friend’s parents always give them the latest cell phones on their birthday. His parents, give either books or clothes on his birthday. David
Am I doing number 1 right???
moderate-intensity land-based exercise usually generates enough heat to maintain the body's core temperature as low as ___ without the need for external heavy c
Which test tubes were used to determine the optimal pH for lipase activity??
The actual length of a TV show that airs in a 1 hour time slot is given by 60 - c where c is the amount of time (in minutes) of commercials. How long is a show
I need help ASAP only with four and 5 please help thank you so much asap
