Answer:
16.9
Step-by-step explanation:
P(5,2) = 5!/3! = 20
in 20 ways you can give medals
Ok the ladder and the ground will make a right triangle/right angle. This is because the ground is flat, the wall is straight and only the ladder is leaning/slanted. I hope this helps.
Let s = northbound train
Then
2s = southbound train
:
Distance = time * speed
4s + 4(2s) = 600
:
4s + 8s = 600
:
12s = 600
:
s = 600/12
:
s = 50 mph is the northbound train
Then
2(50) = 100 mph is the southbound train
:
:
Check:
4(50) + 4(100) = 600
Option B is correct.
Step-by-step explanation:
We need to solve:
We know that:
Applying the above rule:
So, Option B is correct.
Keywords: Solving with Exponents
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