The table below describes phone calls made on the planet K-2L last year. The columns show calls dialed by men versus women, and the rows show the distribution of call lengths. (Note that this is not real data.)
There were 13,950,000,000 phone calls of 0 to 5 minutes.
How many phone calls were made by women?
Consider 3 particular phone calls from last year
• The first call lasted 2 minutes.
• The second call lasted 17 minutes.
The third call lasted 4 hours and 11 minutes.

the graph top, left is y = 4x

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

- "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."