This expression represents the average cost per game, in dollars, at a bowling alley, where n represents the number of games:
.\frac{3n\:+\:7}{n}
What is the average cost per game if James bowls 4 games?
A.
$3.50
B.
$2.75
C.
$4.75
D.
$15.00
To find the average cost per game if James bowls 4 games, we substitute n = 4 into the expression:
Average cost per game = (3n + 7) / n
Average cost per game = (3(4) + 7) / 4
Average cost per game = (12 + 7) / 4
Average cost per game = 19 / 4
Average cost per game = $4.75
Therefore, the correct answer is C. $4.75