saiajoy2004 saiajoy2004
  • 09-08-2017
  • Mathematics
contestada

which method would be more efiicient to solve the system y=1/2x and 2x+3y=28

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 09-08-2017
probably the subsitution method


y=1/2x
subsitute that fr y

2x+3(1/2x)=28
2x+3/2x=28
times 2 both sides
4x+3x=56
7x=56
divide by 7 both sides
x=8
sub back

y=1/2x
y=1/2(8)
y=4

(x,y)
(8,4)
Answer Link

Otras preguntas

Motor neurons in mammals transmit signals from the brain to skeletal muscles at approximately 25 m/s. estimate how much time in ms (10−3s) it will take for a si
How long would it take to drive to alpha centauri (4.4 light-years away)?
Which graph is the graph of this function?
Describe the study conducted in the 1930s by margaret mead.
The Act gave Parliament the right to make any laws they wished to regulate the colonies
In which country did Eva Peron work with her husband, President Juan Peron, to improve the lives of the poor and working class?
A sample of 0.600 mol of a metal m reacts completely with excess fluorine to form 46.8 g of mf2. how many moles of f are in the sample of mf2 that forms?
What is the purpose of mitosis
Which native american culture group hunted bison and used dogs pull?
_____ were the dominant vertebrate life form during the paleozoic era.
good job