mya0206
mya0206
22-01-2019
Mathematics
contestada
What is 2x+y=8 and x-2y=-1
Respuesta :
kayeecheng2102p3s8sa
kayeecheng2102p3s8sa
22-01-2019
the solutions of x and y?
2x+y=8...(1)
x-2y=-1...(2)
for (2), x=-1+2y...(3)
sub(3) into(1),
2(-1+2y) +y=8
-2+4y+y=8
5y=10
y=2
sub y=2 into(3)
x=-1+2(2) =3
therefore, x=3,y=2
Answer Link
VER TODAS LAS RESPUESTAS ( 66+ )
Otras preguntas
On April 1, 1996, Taco Bell, the fast-food chain, ran a full-page ad in the New York Times with this news: In an effort to help the national debt, Taco Bell is
Match the stage to the virtue that is obtained at the end of each stage as per Erickson's psychosocial theory 1) Trust vs. Mistrust - hope 2) Generativity vs. S
How would you diagnose and prioritize health-related concerns (problems and needs) in the community?
Suppose you purchase a home for $150,000 this year. If the home increases in value by 3% per year, what will be the value of the home in 10 years? A) $213,958B)
A bartender in a restaurant may become intoxicated while on duty if a customer buys them a drink. 1) True 2) False
A company uses a truck to deliver its products. To estimate costs, the manager models gas consumption by the function G(x)=1250(1,200/x+x) gal/mile, assuming th
In hawaii, license plates are of the form abc 123. what is the probability that if a license plate is issued at random, it will start with hhh?
How does the sequence of the run on the bank enhance the films tension?
What is the value of the expression 7,345,667.00 X 0.925926?
Which standards are higher, business law or business ethics? A. Business law B. Business ethics C. They are both equal
