Answer:
16 problems
Step-by-step explanation:
1. First, we must know that to find how many problems the student solved, we have to multiply the percentage he got by the total number of problems.
2. (Solving)
- [tex]\frac{80}{100}*20[/tex]
- [tex]\frac{4}{5} *20[/tex]
- [tex]\frac{80}{5}[/tex]
- [tex]16[/tex]
Therefore, the student answered 16 problems correctly.
