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.
Your answer is B! I hope this helped.
Answer:
{14, -1, -4}
Step-by-step explanation:
Substitute x into, and get y = 14, -1, -4
Step-by-step explanation:
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Answer:
im not sure sure but by the looks of it i think thats 3,6
Step-by-step explanation:
