159 children and 351 adults swam at the public pool that day.
Step-by-step explanation:
Total people = 510
Total receipts worth = $1116.00
Cost for one child = $1.50
Cost for one adult = $2.50
Let,
x be the number of children.
y be the number of adults.
According to given statement;
x+y=510 Eqn 1
1.50x+2.50y=1116.00 Eqn 2
Multiplying Eqn 1 by 1.50
Subtracting Eqn 3 from Eqn 2;
Putting y=351 in Eqn 1
159 children and 351 adults swam at the public pool that day.
Keywords: linear equations, subtraction
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