Danielle2414 Danielle2414
  • 16-01-2015
  • Mathematics
contestada

2x+y=43
X+y=28
System of equations

Respuesta :

jacobh jacobh
  • 16-01-2015
I like using elimination method. So to do this you add the two exquations together. You get 3x+2y=73.. Wait that wont work. So now you have to change an question that is fair with math, what i would do, is multiply both sides of the x+y=28 by -1, to get -x+ -y=-28, now add them together. x=15, cool right? Now Solve for y. Take x+y=28, plug in x, 15+y=28; subtract 15 from  each side, y=28-15; simplify, y=13. Hope i helped :)
Answer Link

Otras preguntas

A construction firm is building a football stadium. The building work has taken 499 days so far. It should take another 199 days to build. How many days will th
Find the volume of the solid :)
What are some of the social and psychological benefits of participating in team sports for kids?
What are some examples of craft guilds in medieval Europe?
16.38 divided by 0.06
A rectangular cloth of length 10 1/2 m and 7 2/3 m wide used to make the UAE national flag. Find the perimeter of the flag.
a software copyright?​
Poetry shares characteristics with other genres of literature?
who is the7th persistent
10. what is a common way for people to explore a career path before fully committing to it? a.part-time work in the career field b.writing a checklist of work