Question

River Fun Boat rents paddle boats. The following equation givesthe charge Cin dollars for renting a paddle boat for t minutes.C = 4 + 0.10tWhat is the charge to rent a paddle boat for 20 minutes?

Answer 1

Given the equation:

$C=4+0.10t$

where 'C' is the charge in dollars and 't' is the time in minutes, if we want to know what is the charge for 20 minutes, we have to make t = 20 and solve for C:

$\begin{gathered} t=20 \\ \Rightarrow C=4+0.10(20)=4+2=6 \\ C=6 \end{gathered}$

therefore, the charfe to rent a paddle boat for 20 minutes is 6 dollars