You have already traveled 30 miles east and then 30 miles north. to get back to the start, you travel 30 miles west in 1 hour and then 30 miles south in a half hour. what are your average speed and average velocity for the whole rally?

The average speed for the whole rally is 45 miles per hour.

Step-by-step explanation:

Given:

You have traveled 30 miles east and then 30 miles north. To get back to the start, I travel 30 miles west in 1 hour and then 30 miles south in a half hour.

Now, to find the average speed for the whole rally.

So, for getting the speed of 30 miles west in 1 hour.

By putting formula:

Now, to get the speed of 30 miles south in half hour same way as above:

Then, to get the average speed.

We calculate the average of both the speed:

Therefore, the average speed for the whole rally is 45 miles per hour.

y/x=18

step-by-step explanation:

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.