Respuesta :
Answer:
79
Step-by-step explanation:
We require his total score after 5 games
average = [tex]\frac{total}{count}[/tex], hence
[tex]\frac{total}{5}[/tex] = 91 ( multiply both sides by 5 )
total = 5 × 91 = 455
let his score in the sixth game be x, then
[tex]\frac{455+x}{6}[/tex] = 89 ( multiply both sides by 6 )
455 + x = 534 ( subtract 455 from both sides )
x = 534 - 455 = 79
his score in the sixth game was 79
