1.75m + 6 ≤ 24.20
In this equation, the variable 'm' represents the number of markers. Since the english teacher is only buying one poster board, there is no need to assign it to a variable.
Because the teacher can't spend more than $24.20, the price of the markers and the board must be less than or equal to (≤) 24.20
Now we solve for the equation.
Subtract both sides by 6 in order to isolate m.
1.75m ≤ 18.20
Divide both sides by 1.75:
m ≤ 10.4
Since you can't buy a fraction of a marker, we can round down.
m ≤ 10
The teacher can buy a maximum of 10 markers.
Good luck! If you have any questions, just ask :))
-T.B.