mathstudent0
mathstudent0 mathstudent0
  • 02-04-2017
  • Mathematics
contestada

5x + 2y = 8
x + y = 4
If you want to solve the system of equations by addition, which of the following could you do?

Respuesta :

Shailza Shailza
  • 02-04-2017
Multiply the equation x+y =4 by -5
The resultant would be- 
-5x -5y = -20
Adding this with 5x +2y =8
Then, the resulting would be, 
-3y = -12
∴ y=4
and x=4-4 =0
Answer Link
sassyqueensavage
sassyqueensavage sassyqueensavage
  • 16-12-2020

Answer:

ita a

Step-by-step explanation:

Answer Link

Otras preguntas

The amount of candy left in a Halloween bucket is given by the function A(t) = 50(0.8)t where t stands for the number of minutes the candy is available and A(t)
What mass of hydrogen peroxide should result when 1.50 g of barium peroxide is treated?
A factory has 115 ceiling fans in stock. If the factory can manufacture 12 fans each hour, how long would it take the factory to complete an order for 500 ceili
Workflow, groupware, and telepresence systems are examples of which network application?
oKAY i CANT EVEN FIGURE THIS ONE OUT NEED HELP. -3 (5 – 2y)
The study of the importance of satisfying love and acceptance needs best describes which school of psychology
At a certain university the student to teacher ratio is 16:1. If there are 2,000 students enrolled, how many teachers must be employed to maintain this ratio?
Why was access to waterways an important factor in the development of colonial cities and towns?
please help me..stuck on problem.
Read the excerpt from "The Most Dangerous Game." "Even so, I rather think they understand one thing—fear. The fear of pain and the fear of death." What does thi