Bob and sue enter a race. bob runs an average of 12 kilometers per hour, and sue runs an average of 8 kilometers per hour. if bob finishes 2 hours before sue, how long is the race?

48 km

Step-by-step explanation:

Let us assume that, the distance of the track where they raced is x km.

We know that,

or

Bob runs an average of 12 kilometers per hour. So time taken by Bob is,

Sue runs an average of 8 kilometers per hour. So time taken by Sue is,

Bob finishes 2 hours before Sue, so

km

the equation of the parallel line would be y = 2x + 9

step-by-step explanation:

to start we need to find the slope of the original line. we can do that by looking at the coefficient of x, which is 2

since the slope of the original line is 2 and parallel lines have the same slope, we know the new line will also have 2 slope. now we can use that along with the point given in point-slope form to get the find equation.

y - y1 = m(x - x1)

y - 5 = 2(x + 2)

y - 5 = 2x + 4

y = 2x + 9