b A container contains 10 litres of water. Water is then poured in at a rate of 5 litres per minute. Give a rule for the volume, Vlitres, of water in the container at time

I minutes after the pouring starts.
step by step solutions

Rule: Vlitres = 10 + 5I

Explanation: The container initially contains 10 litres of water. Since water is poured in at a rate of 5 litres per minute, the volume of water in the container at time I minutes after the pouring starts is 10 litres plus 5 litres for each minute that has passed, which is 5I litres. Therefore, the rule for the volume of water in the container at time I minutes after the pouring starts is Vlitres = 10 + 5I.

yes 10 + 5 t