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Jonatron · Answer 1 · 2023-03-06T10:54:23+0000

Since we have the value for selling each shirt, the earnings that came from the hats sold and the total earnings we can complete equation using a linear equation in which the cost of each shirt will represent the slope and the y-intercept will be the earnings that came from the hats, like this:

then clear the equation for x in order to find how many shirts were sold

$\begin{gathered} 5x=125-40 \\ 5x=85 \\ x=17 \end{gathered}$

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