Alana jumped rope amazing 20 mins she stop at 8:05 when did she start jumping

7: 45

Step-by-step explanation:

8:05

Subtract 20 minutes

8:05

-   20

We need to borrow minutes 1 hour = 60 minutes

7:65

-   20

7 :45

7:45

Step-by-step explanation:

Start?

throughout-20min

ended-8:05

we have to subtract 20minutes from 8:05 to see where she started

8:05⇒8:00   would be minus five minutes

so 15 minutes

8:00⇒7:50 would be minus ten minutes

so 5 minutes

7:50⇒7:45

so 7:45 is the time she started jump roping

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: