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DIG DEEPER! A county fair charges an entry fee of $7 and $0.75 for each ride token. You have $15. Write an expression that represents the amount (in dollars) you have left after entering the fair and purchasing n tokens. An expression is How many tokens can you purchase? You can purchase tokens.

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\begin{gathered} \text{ We had 15 dollars, and for n rides, the cost is 0.75n, and the entry is 7, thus the equation is} \\ 15-7-0.75n=8-0.75n \\ The\text{ expression to get the nuymber of tokens is} \\ 8-0.75n=0 \\ 8=0.75n \\ n=(8)/(0.75) \\ n=10.6667 \\ \text{You can purchase 10 tokens!} \end{gathered}

User Ross Peoples
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