Answer:
neither of them
Step-by-step explanation:
1. To prove that neither of them are correct, we have to work on the equation 2/5(b) + 1 = -11 ourselves.
2. (Solving)
Step 1: Subtract 1 from both sides. (This is where Tyler got it wrong)
- [tex]\frac{2}{5}b + 1 - 1 = -11 - 1[/tex]
- [tex]\frac{2}{5}b = -12[/tex] (this is where Mai got it wrong)
Step 2: Multiply both sides by 5/2.
- [tex]\frac{2}{5}b * \frac{5}{2} = -12 * \frac{5}{2}[/tex]
- [tex]b = \frac{-60}{2}[/tex]
- [tex]b = -30[/tex]
Step 3: Check if solution is correct.
- [tex]\frac{2}{5}(-30) + 1 = -11[/tex]
- [tex]\frac{-60}{5} +1 = -11[/tex]
- [tex]-12 + 1 = -11[/tex]
- [tex]-11 = -11[/tex]
3. As you can see, our solution is correct, but it doesn't match with either Mai or Tyler's works.
Therefore, the answer is neither of them are correct.
