What is the slope of a line that is perpendicular to the line represented by the equation 3x + 4y = 12?

Please help?
The answer is not b

-3/4

Step-by-step explanation:

3x+4y=12

get into y=mx+b form first (m is the slope, b is the intercept)

So, 4y=12-3x

Then y=(12/4)-(3/4)*x

So your m is -3/4

Since you said it must be parallel the slope is the same to ensure they never touch

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.