Question

James and two friends are going bowling. It costs them seven dollars to rent the lane and four dollars for each game they bowl. In interval form, how many games can they play if they brought twenty-eight dollars?

(0,5)

(0,5]

(0,8)

(0,8]

Answer 1

Answer: (0,5]

Explanation:

Hi, to answer this we have to write an equation:

The cost of renting the lane (7) plus the product of the number of games (x) and the cost per game (4) must be equal to the money they brought (28):

7+4x =28

Where x is the number of games.

Solving for x

4x =28-7

4x=21

x=21/4

x = 5.25 games

They can play up to 5 games (rounded)

(0,5]

Since they can play up to 5 games, the end value (5) is included, the interval must use a square bracket at the end.