Show that
$$\frac { \mathrm { d } h } { \mathrm {~d} t } = - 0.012 ( h - 5 )$$
20
Solve the differential equation
$$\frac { \mathrm { d } h } { \mathrm {~d} t } = - 0.012 ( h - 5 )$$
to find an expression for \(h\) in terms of \(t\) [0pt]
[5 marks]
20
Find the time taken for the container to be half empty.
Give your answer to the nearest minute.
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Question number
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