If y varies inversely as x, and y = 12 when x = 6, what is k, the variation constant? a. 2 b. 72 c. 144 d. 1/3

In this question, it is given that y varies inversely as x . So the equation is

And here k is the proportionality constant .

And when x=6, y=12

So the values of the proportionality constant k is 72 and the correct option is B.

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

well we know there are 4 clubs in 52 cards so it’s replaced so it should be 3/51

step-by-step explanation: