Answer:
2 hours 9 mins 29 seconds
Step-by-step explanation:
Rewrite these two expressions in vertical form for ease in combining like quantities (that is, quantities with the same units of measurement):
3 hours 28 mins 57 seconds
- (1 hour 19 mins 28 seconds)
Combining like terms, we get:
2 hours 9 mins 29 seconds
