Simplify to create an equivalent expression.
-y-3(-3y+5)

8y - 15

Step-by-step explanation:

-y - 3(-3y+5)

-y + 9y - 15

8y - 15

8y - 15 is the equivalent to the expression -y - 3(-3y + 5).

Step-by-step explanation:

= -y - 3(-3y + 5)

= -y + 9y - 15

= 8y - 15

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.

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.