During a walk-a-thon, Noah's time in hours, t, and distance in miles, d, are related by the equation (1/3)d =t. A graph of the equation includes the point (12,4). a) Identify the independent variable. How does Energy from the Sun reach Earth?

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

mark other person brainliest

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.

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed