Respuesta :
Answer:
What we know:
- 39 hours is the total amount of time spent on the trip.
- 14 hours spent with both walking and the train.
Our challenge:
- To figure out how many __ hours were spent on the bus.
Let's set up an equation,
-we'll assume that 'x' are the unknown hours spent on the bus.
The unknown hours spent on the bus plus the hours spent both on walking/and the train will equal a total of 39 hours.
So,
14 + x = 39
Solve for x;
-14 -14
x = 25, the hours Jerry spent riding on the bus is 25 hours.
Answer:
25 hours
Step-by-step explanation:
Given
- It took 39 hours in total to get to his grandmother's house
- Walking and train transit takes 14 hours together
Solving
- Total time = Time (walking) + Time (train) + Time (bus)
- 39 hours = 14 hours + Time (bus)
- Time (bus) = 39 - 14 = 25 hours
