To model the situation with a pair of linear equations, we can represent the number of slices of pizza sold as \( p \) and the number of cans of soda sold as \( s \).
From the information given, we can derive two equations:
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The total number of items sold is 150. Therefore, we can write the first equation as: \[ p + s = 150 \]
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The profit made from selling the pizza and soda is $450. Since they made a profit of $2 per slice of pizza and $1 per can of soda, we can write the second equation as: \[ 2p + 1s = 450 \]
Thus, the pair of linear equations that model this situation is: \[ \begin{align*}
- & \quad p + s = 150 \
- & \quad 2p + s = 450 \end{align*} \]