It cost 4$ to enter the fair.Each ride cost $2.50.You have $21.50.How many rides can you go on?
(21.5 - 4) / 2.50 = _____ rides
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To find out how many rides you can go on, we need to calculate the amount of money left after paying for the fair entrance fee.
First, subtract the entrance fee of $4 from the total amount, which is $21.50 - $4 = $17.50.
Next, divide the remaining amount by the cost of each ride, which is $17.50 / $2.50 = 7 rides.
Therefore, you can go on 7 rides with $21.50.