The inequality x < 38 can be used to represent how much water is in a swimming pool, where x
is the volume of water in the pool in cubic meters,
Which of these statements BEST describes how
much water is in the swimming pool?

There is at least 38 cubic meters of water in the
pool,

There is more than 38 cubic meters of water in
the pool.

There is up to 38 cubic meters of water in the
pool

There is less than 38 cubic meters of water in
the pool

No links

- "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."