Question 702769
6x + 3.5y = 340
x + y = 65; therefore, y = 65 - x
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Substitute
6x + 3.5(65-x) = 340
6x + 227.5 - 3.5x = 340
2.5x + 227.5 = 340
2.5x = 340 - 227.5
2.5x = 112.5
{{{highlight_green(x = 45)}}} adult tickets sold
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