Question

This expression represents the average cost per game, in dollars, at a bowling alley, where n represents the number of games: . What is the average cost per game if James bowls 4 games?

Answer 1

$4.75

Explanation:

The expression given for then average cost is :

(3n + 7 / n)

If the number of games, n = 4

The average cost becomes :

(3n + 7) / n

Put n = 4 in the equation

(3(4) + 7) / 4

(12 + 7) / 4

19 / 4

= 4 3/4

= $4.75