15 points!!

What is the probability of rolling an even number on a standard number cube and then rolling a 1?

1/12

Step-by-step explanation:

A die has the numbers  1,2,3,4,5,6

Even numbers 2,4,6

P (even) = number of even numbers/ total

              = 3/6 = 1/2

P (1) =  Number of 1's/ total

         =1/6

Since the events are independent

P(even, then 1) = P(even) * P(1)

                         =1/2 * 1/6

                         = 1/12

; )

step-by-step explanation: ; )

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.