Question

If the speed of x meters per second is equivalent to the speed of y kilometers per hour, what is y in terms of x ?

Answer 1

speed = x m/s --------(1)

also, speed = ykm/h

= y m/s ×5/18

= 5y/18 m/s ----------(2)

from (1) & (2),

x m/s = 5y/18 m/s

x = 5y / 18

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