Answer:
Step-by-step explanation:
The key fact is what are the trains doing: are they travelling toward one another or away from each other
Away from each other.
Train A has gone 50 km in 1 hour
Train B has gone 65 km in 1 hour.
They started off being 200 km apart
So their distance now is 50 + 65 + 200 = 315
Towards each other
This time they are eating into the 200 km
So you subtract
200 - 65 - 50 = 200 - 115 = 85 km.
Both trains are travelling in the same direct -- in B's direction
B - 65 + 50
200 - 15
185 km
Both trains are travelling in As direction
A - 50 + 65
200 + 15 = 215
The tricky part of this is which train is going in what direction?
As you can see, You have covered A C and D
The only one can't get is 115 (of course 315 didn't show up either).
Answer: 1500000
Step-by-step explanation:
The half of 3,000,000 is 1500000 so 1500000
Answer:
C
Step-by-step explanation:
To be a factor of 16 they need to be numbers that divide into it without remainders.
It is parallel due to the fact that it is the exact same number with one being positive and one being negative.
1st step is to find the radius, then substitute into the formula for area of a circle
to find the radius, just halve the diameter
