A charity bingo game costs $2 per round and has a $13 entry fee for an adult. It costs $3 per round and a $10 entry fee for a ch
ild. For how many rounds of bingo are the costs the same for an adult and a child?.
1 answer:
The number of rounds of bingo when the two costs would be the same is 3.
<h3>When would the two costs be the same?</h3>
The equation that represents the total cost for adults is : 13 +2r
The equation that represents the total cost for children: 10 + 3r
where r is the number of rounds
When the two costs are the same, the two above equations would be equal: 13 + 2r = 10 + 3r
13 - 10 = 3r - 2r
r = 3
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