Substitute values into a formula
A tank contains some water before a tap fills it at a constant rate
V is the water volume in litres and t is the filling time in minutes. The tank holds 300 litres
\[V = 55 + 6t\]
\[t = 2\]
A tank contains some water before a tap fills it at a constant rate
V is the water volume in litres and t is the filling time in minutes. The tank holds 300 litres