Plz Help Me! Express the set using the roster method. {x|+7=9}
The set can be expressed using the roster method as {___}

16

Step-by-step explanation:

Add 77 to both sides.

x=9+7

x=9+7

2 Simplify  9+79+7  to  1616.

x=16

x=16

answer: i can’t tell you that

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.