Answer :
Answer: 98%
Step-by-step explanation:
- The third test score = x
[tex]\frac{77+65+x}{3} =80\\\frac{142+x}{3} =80\\142+x=80*3\\x=240-142=98[/tex]
Answer: 98%
Step-by-step explanation:
[tex]\frac{77+65+x}{3} =80\\\frac{142+x}{3} =80\\142+x=80*3\\x=240-142=98[/tex]