Kim can produce 40 pies per hour or 400 cakes per hour. Liam can produce 100 pies per hour or 200 cakes per hour.
What is Kim's opportunity cost of producing a pie is
cakes?

19

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."

236 cm 16 time 12 = 192

6 times 7 = 42

192+42