Okay so my teacher gave me this question "5=-3+y" can someone help me under stand it??

5=-3+y

inverse property. -3 + 3 = 0 so we add 3 to both sides to cancel out the -3 to ISOLATE the y.

5 = -3 + y

-3 + 3

-3 + 3 = 0

5+3 = 8

8 = y.

y = 8 basically.  I hope that helped.

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.