Answer :
To identify which system of equations best represents the given equations, we start by analyzing each provided option and comparing it to the original set of equations:
### Original Equations
1. \(2a + b + 3c = 10\)
2. \(3a + 2b + 4c = 14\)
3. \(4a + 2b + 6c = 20\)
### Option A
1. \(3a + 2b + 4c = 14\)
2. \(4a + 2b + 6c = 20\)
3. \(2a + 2b + 3c = 10\)
### Option B
1. \(3a + 2b + 4c = 14\)
2. \(2a + 3b + 6c = 20\)
3. \(2a + 2b + 3c = 10\)
### Option C
1. \(3a + 2b + 4c = 14\)
2. \(4a + 2b + 6c = 20\)
3. \(2a + 2b + 2c = 10\)
### Option D
1. \(a + 2b + 4c = 14\)
2. \(2a + 3b + 6c = 20\)
Now, let's compare each option with the original equations:
- Option A:
- First equation \(3a + 2b + 4c = 14\) matches the second original equation.
- Second equation \(4a + 2b + 6c = 20\) matches the third original equation.
- Third equation \(2a + 2b + 3c = 10\) does not match any of the original equations.
- Option B:
- First equation \(3a + 2b + 4c = 14\) matches the second original equation.
- Second equation \(2a + 3b + 6c = 20\) does not match any of the original equations.
- Third equation \(2a + 2b + 3c = 10\) does not match any of the original equations.
- Option C:
- First equation \(3a + 2b + 4c = 14\) matches the second original equation.
- Second equation \(4a + 2b + 6c = 20\) matches the third original equation.
- Third equation \(2a + 2b + 2c = 10\) does not match any of the original equations.
- Option D:
- First equation \(a + 2b + 4c = 14\) does not match any of the original equations.
- Second equation \(2a + 3b + 6c = 20\) does not match any of the original equations.
### Conclusion
Out of all the options provided, Option C [ \(3a + 2b + 4c = 14\), \(4a + 2b + 6c = 20\), and \(2a + 2b + 2c = 10\) ] best aligns with two out of the three original equations. Thus, the correct choice is:
Option C
### Original Equations
1. \(2a + b + 3c = 10\)
2. \(3a + 2b + 4c = 14\)
3. \(4a + 2b + 6c = 20\)
### Option A
1. \(3a + 2b + 4c = 14\)
2. \(4a + 2b + 6c = 20\)
3. \(2a + 2b + 3c = 10\)
### Option B
1. \(3a + 2b + 4c = 14\)
2. \(2a + 3b + 6c = 20\)
3. \(2a + 2b + 3c = 10\)
### Option C
1. \(3a + 2b + 4c = 14\)
2. \(4a + 2b + 6c = 20\)
3. \(2a + 2b + 2c = 10\)
### Option D
1. \(a + 2b + 4c = 14\)
2. \(2a + 3b + 6c = 20\)
Now, let's compare each option with the original equations:
- Option A:
- First equation \(3a + 2b + 4c = 14\) matches the second original equation.
- Second equation \(4a + 2b + 6c = 20\) matches the third original equation.
- Third equation \(2a + 2b + 3c = 10\) does not match any of the original equations.
- Option B:
- First equation \(3a + 2b + 4c = 14\) matches the second original equation.
- Second equation \(2a + 3b + 6c = 20\) does not match any of the original equations.
- Third equation \(2a + 2b + 3c = 10\) does not match any of the original equations.
- Option C:
- First equation \(3a + 2b + 4c = 14\) matches the second original equation.
- Second equation \(4a + 2b + 6c = 20\) matches the third original equation.
- Third equation \(2a + 2b + 2c = 10\) does not match any of the original equations.
- Option D:
- First equation \(a + 2b + 4c = 14\) does not match any of the original equations.
- Second equation \(2a + 3b + 6c = 20\) does not match any of the original equations.
### Conclusion
Out of all the options provided, Option C [ \(3a + 2b + 4c = 14\), \(4a + 2b + 6c = 20\), and \(2a + 2b + 2c = 10\) ] best aligns with two out of the three original equations. Thus, the correct choice is:
Option C