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adell [148]
3 years ago
11

A stone fell from the top of a cliff into the ocean.

Mathematics
1 answer:
BabaBlast [244]3 years ago
3 0

Answer:

down below

Step-by-step explanation:

total distance = sum of velocity * time for both legs of the journey;

let the time taken in air be t

hence time taken in water is 12-t

127 = 16*t + 3(12-t)

127 = 16t + 36 - 3t

127 - 36 = 16t - 3t

91 = 13t

t = 91/13 = 7 seconds

ence time taken in air = 7 seconds

time taken in water is 12 - 7 = 5 seconds

checking; 16*7 + 3*5 = 127 (proven

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