Respuesta :
Answer:
15 buses
Step-by-step explanation:
7:20 1 bus leaves
Then 1 leaves every 15 minutes
35, 50, 05 and 20 4 buses til 8:20
35, 50, 05 and 20 4 buses til 9:20
35, 50, 05 and 20 4 buses til 10:20
35,50 2 buses leave til 11:00
Add them together
1 +4+4+4+2 = 15 buses
Answer:
15
Step-by-step explanation:
The number of minutes from 7:20 to 8:00:
N1 = 40 minutes
The number of minutes from 8:00 to 11:00:
N2 = (11 - 8) x 60 = 180 minutes
=> The number of minutes from 7:20 to 11:00:
N = N1 + N2 = 40 + 180 = 220 minutes
Every 15 minutes, a bus leaves.
The number of 15-minute intervals from 7:20 to 11:00:
220/15 = 14.67 = 14
=> The number of buses leave from 7:20 to 11:00:
14 + 1 = 15
(including the 1st bus)
Hope this helps!