Question

Select the correct answer to solve the inequality.A train has already traveled for 8 hours. If the train travels an additional h hours, it will arrive inDallas in less than 20 hours. How many additional hours does the train need to travel?Answer options are in the image attached

Answer 1

The train already traveled 8 hours and will travel more h hours, so the total amount of hours will be 8 + h.

Then, if this amount of hours is less than 20 hours, we can write the following inequality and solve it for h:

$\begin{gathered} 8+h<20\\ \\ h<20-8\\ \\ h<12 \end{gathered}$

Therefore the correct option is the fourth one.