Ann is addressing envelopes for her wedding invitations. This graph shows how many envelopes she has addressed over time.
On average, how many envelopes does Ann address per hour? Choose the best estimate
48 envelopes per hour
24 envelopes per hour
36 envelopes per hour
64 enveloped per hour
no graph shown
24 envelopes per hour
To find the average number of envelopes Ann addresses per hour, we can look at the graph and calculate the slope or rate of change of envelopes addressed over time.
If we observe the graph and count the number of envelopes addressed at two different time points, for example, from 2 hours to 4 hours, we can see that Ann addressed 72 envelopes during that time.
The rate of change can be calculated by dividing the change in envelopes addressed (72) by the change in time (4 - 2 = 2 hours). Therefore, the rate of change is 72/2 = 36 envelopes per hour.
Thus, the best estimate for the average number of envelopes Ann addresses per hour is 36 envelopes per hour. So the correct option is:
36 envelopes per hour.