"write down a rule for finding the volume(v litres) remaining after h hours."
I dOnt know how to do this.
To write down a rule for finding the volume remaining after a certain number of hours, we need to know the initial volume and the rate at which the volume is decreasing. Let's assume the initial volume is V0 liters and the rate of decrease is R liters per hour.
The rule for finding the volume remaining (V liters) after h hours would be:
V = V0 - (R * h)
To use this rule, you need to know the initial volume (V0) and the rate of decrease (R). You also need to know the number of hours (h) for which you want to calculate the remaining volume. Simply substitute these values into the formula, and you will get the volume (V) in liters remaining after the given time.
If you have specific values for V0, R, and h, you can simply plug them into the formula and calculate the volume remaining.