A boat traveled a certain distance upriver and then traveled downrive…

Question

Prompt

A boat traveled a certain distance upriver and then traveled downriver

10

miles farther than it traveled upriver. The boat took

x

hours to travel upriver at a speed of

12

miles per hour. The boat then took

y

hours to travel downriver at a speed of

18

miles per hour faster than the speed at which the boat traveled upriver. Which of the following equations best represents this situation?

12 x - 30 y = - 10

12 x + 30 y = - 10

12 x + 30 y = 10

12 x - 30 y = 10