Train a departs from point a with a velocity of 150 km/h, train b departs from point b with a velocity of 100 km/h, and the distance between point a and b is 500 km. how long will it take for the trains to meet?

10 hours or 2 hours

Step-by-step explanation:

Condition 1 - Both the trains are moving the a same direction.

Condition 2 - Both the trains are moving in opposite directions.

2 hours.

Step-by-step explanation:

Their combined speed is 100+ 150 = 250 km/h

Speed = distance / time

250 = 500 / t

t = 500/250

= 2 hours.

i would need to see the dot plot : )

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: