Bob is hiking down a 60-mile country trail. he could hike at 10 mph for the first two hours and then go the rest of the way at 30 mph or he could just go the whole way at 20 mph. how long would each of these options take?

10 mph for two hours and the rest 30 miles per hour: 3 hours and 20 minutes

20 mph all the way: 3 hours

Step-by-step explanation:

In order to solve this you just have to make the calculations for each trip:

If he goes the first two hours at 10 mph, he will travel 20 miles in the first two hours.

THen he still has 40 miles to go, so we just have to divide 40/30 miles per hour

40/30=1.333 so it would take him 1.3333 hours or 1 hour and 20 minutes to finalize the rest of the trip. IN total that would add up to 3 hours and 20 minutes.

The second trip you would just have to divide 60 miles by 20 miles per hour:

60/20= 3 hours

So it would take bob 3 hours to complete with the second speed.

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation:

imma say 16%. sorry if its wrong. i'm doing the same stuff right now

step-by-step explanation: