Jill has four of her five game scores: 8,6,6,3 Her average schore for the five games is 6 points. What is the fifth game score? Write an equation to help sove the problem.

Answer 1

The total points for the 4 known games is 23

After the 5th game, her average is 6, so the total points are now 30.

So, she must have gotten 7 points on the 5th game.

Now, if you want an equation, relate the score totals:

8+6+6+3 + p = 6*5
23 + p = 30
p = 7