Answer:
55.8
Step-by-step explanation:
all ya gotta do is multiply the numbers together
2/9 + 4/9
first add them and then divide to get the simplest form ....
=6/9
=2/3 ...
Hope it helps !!!
Let x = first plane's speed.
We have the equation:
2 hours * x km/h + 1.5 hours * (x+60) km/h = 3135 km.
3.5 hours*x km/h + 90 km = 3135km
3.5hours*x km/h = 3045km
x = 870 km/h.
The first plane is traveling at 870 km/h, therefore since it is 60 km/h faster, the second plane is traveling at 930 km/h.
Answer: IDK
Step-by-step explanation:
