Josephine wrote the numbers 1-100 and placed them in a bag. If she selects a number without looking, what is the probability that the number is greater than 78? Input your answer as a decimal or fraction.

0.22

Step-by-step explanation:

The numbers that would be greater than 78 would include numbers after 78. that is 79, 80 ... 100

The total numbers greater than 78 is 22.

And there are 100 numbers in the bag . the probability of picking a number greater than 78 is 22/100 = 0.22

- "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."