Answer:
Add
−
1
and
2
.
2
,
2
s
+
1
Step-by-step explanation:
9514 1404 393
Answer:
- northbound: 2.5 hours
- southbound: 1.5 hours
Step-by-step explanation:
When the second train leaves the station, the trains are already 63 miles apart. The rate of increase of their separation is (57 +63) = 120 miles per hour. The remaining 243-63 = 180 miles of separation will be achieved in ...
(180 mi)/(120 mi/h) = 1.5 h
The northbound train will have traveled 2.5 hours; the southbound train will have traveled 1.5 hours when the trains are 243 miles apart.
Starting at the origin means starting at (0,0)/ moving left 5 units means x will be -5, and moving up 2 units mean y will equal 2.
(-5,2)