Jaaay209
Jaaay209
21-01-2016
Mathematics
contestada
what is the solution to 3x-y=4 and 2y+x=11
Respuesta :
Panoyin
Panoyin
22-01-2016
3x - 1y = 4 ⇒ 9x - 3y = 12
1x + 3y = 11 ⇒ 1x + 3y = 11
10x = 23
10 10
x = 2.3
3x - y = 4
3(2.3) - y = 4
6.9 - y = 4
- 6.9 - 6.9
-y = -2.9
-1 -1
y = 2.9
(x, y) = (2.3, 6.9)
Answer Link
VER TODAS LAS RESPUESTAS ( 63+ )
Otras preguntas
What did you include in your response? Check all that apply. Child’s approach is most effective at creating suspense. Slaughter’s approach is most effective at
Convert 2.40 x 10 23 molecules of an anonymous substance with a molar mass of 18.02 g/mol to its mass in grams.
he probability symbol (~) represents the probability of an event happening. True False
Rob and Janice had to choose between making a 600 mile trip by car or by plane. Round-trip airfare was $260 for each of them and would take 2 hours. Round-trip
an employee of the long-term care facility forgets to lock the wheels on a patient's wheelchair resulting. in a fall with injuries . this could potentially resu
Which is a type of Japanese poem that consists of five lines with the first and third lines usually having five syllables and the others seven making it a total
name 4 decimals whose sum is 2.35.
Name at least three allies of the United States today. How do you think the United States would support these allies in times of war? What about in times of pea
3. Jane has been challenged by her teacher to create a design based on the successes of nature'sdesign. Her assignment includes all parts of the design process.
Which statement about legal marriage is true? O It represents a binding contract. O It requires each person to have a job. O It has the same requirements in all
