Brandon and carlos played a game of darts, and carlos scored 30 more points than brandon. The total of their score was 142 points. How many points did each of them score?

Brandon scored 56 points and Carlos scored 86 points.

Step-by-step explanation:

142-30=112

112/2=56

56+30=86

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."