Respuesta :
Let the number of churros sold be x, then
1.25x ≥ 150
x ≥ 150/1.25
x ≥ 120
1.25x ≥ 150
x ≥ 150/1.25
x ≥ 120
Let
x-------> the number of churros sold
we know that
[tex]1.25x \geq 150[/tex] -----> inequality that represent the situation
Solve for x
Divide by [tex]1.25[/tex] both sides
[tex]x \geq 150/1.25[/tex]
[tex]x \geq 120\ churros[/tex]
therefore
the answer is
The minimum number of churros that must be sold is [tex]120[/tex]