On a certain hot summer's day, 300 people used the public swimming pool. The daily prices are $1.75 for children and $2.25 for adults. The recipients for admissions totaled $613.50. How many children and how many adults swam at the public pool that day?

There were ___ children at the public pool.

There were ___ adults are the public pool.

1 answer

2.25a + 1.75(300-a) = 613.5