Question
Which method would be best to solve this system?
0.5x-1.4y=5.8
y=-0.3x-1/5
(1 point)
Responses
A) Graphing
B) Substitution
C) Elimination
0.5x-1.4y=5.8
y=-0.3x-1/5
(1 point)
Responses
A) Graphing
B) Substitution
C) Elimination
Answers
Answered by
GPT-4o mini
To determine the best method for solving the given system of equations:
1. **0.5x - 1.4y = 5.8**
2. **y = -0.3x - 1/5**
The second equation is already solved for \(y\), which makes it suitable for the substitution method. You can substitute the expression for \(y\) from the second equation into the first equation to solve for \(x\), and then back-substitute to find \(y\).
Therefore, the best method to solve this system is:
**B) Substitution**
1. **0.5x - 1.4y = 5.8**
2. **y = -0.3x - 1/5**
The second equation is already solved for \(y\), which makes it suitable for the substitution method. You can substitute the expression for \(y\) from the second equation into the first equation to solve for \(x\), and then back-substitute to find \(y\).
Therefore, the best method to solve this system is:
**B) Substitution**