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D. Pyramid
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Let x be the length of the train.
On the basis of the observer;
Speed of the train = x/6
On the basis of the bridge;
Total distance covered by any point of the train= 350+x
Speed = (350+x)/20
Equating the two expressions of speed;
x/6 = (350+x)/20
20(x) = 6(350+x)
20x = 2100+6x
(20-6)x = 2100
14x = 2100
x= 2100/14 = 150 m
Speed = x/6 = (350+x)/20 = 150/6 = 500/20 = 25 m/s.
Therefore,
Length of train = 150 m
Speed of train = 25 m/s
Answer:
Use this formula for these kinda things.
Step-by-step explanation:
Remember The z is the hypathonous, it means the biggest side.
where Z is going to be C
put this all together
put it into calculator, means 373=
therfore take the square root, it will be
which it will be 19.31
The answer is A
-4x +3y + z + 2
Answer:
53.85%
Step-by-step explanation:
75-48.75= 26.25
26.25/48.75x100= 53.8461538462 Round 53.85%
Check Answer:
48.75 x 53.85%=26.251875 Round 26.25
48.75 + 26.25=75
Hence, the correct answer is 53.85%.
