Question

491 people used the pool. It costs $1.25 for kids and $2.25 for adults. The total cost was $757.75. How many kids and how many adults used the pool?

Answer 1

144 adult and 347 kids

Explanation:

Answer 2

• 347 kids
• 144 adults

Explanation:

Let x represent the number of adults using the pool. Then 491 -x is the number of kids using the pool, and the total revenue is ...

2.25x +1.25(491 -x) = 757.75

x +613.75 = 757.75 . . . . . . . . . eliminate parentheses, collect terms

x = 144 . . . . . . . . . . . . . . . . . . . . subtract 613.75; number of adults

491-x = 347 . . . . . number of kids

347 kids and 144 adults used the pool.