CHALLENGE: In a gymnastics competition the overall score is calculated from points for execution and difficulty, calculated with weights of 80% and 20% respectively. Grace scored 9.8 for execution and had an overall score of 9.5. What was her score for difficulty?

step-by-step explanation:

- "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."

what are the statments

step-by-step explanation:

25/6 hope it : )

step-by-step explanation: