Science:Math Exam Resources/Courses/MATH101 B/April 2025/Question 01 (c)/Hint 1

Write $Q(t)=\underset{a}{\overset{t}{\int }}q(s)ds$. By the fundamental theorem of calculus, $q(t)=\frac{dQ}{dt}$. If $Q(t)$ is the number of salmon that have passed through the station from time $a$ to time $t$, what should $\frac{dQ}{dt}$ be?