Answer:
12313
Step-by-step explanation:
There are so many relationships between the original entity and new relation.
The relation mapped from an entity involved in a 1:1 unary relationship contains a foreign key that correspond to its own primary key. 1 to one foreign key will be unique.
One ton = 2000 lbs
Therefore, 1.5 tons = 3000 lbs
3000-300=2700lbs
Answer:
time = distance/speed
3080/770 = 4
So it took 4 hours.
Step-by-step explanation:
