# To catch an 8:30 am bus, Kendra needs 45 minutes to shower and dress, 20 minutes to eat, and 10 minutes to walk to the bus. When should she wake up to get to the bus on time?

##### 1 Answer

Oct 30, 2017

On or before 7:15am

#### Explanation:

Given:

Bus leaves at: 8:30 am

Shower and Dress = 45 mins

Eat = 20 mins

Walk to the bus = 10 mins

In order to get the time Kendra needs to wake up in order to be able to catch the bus, we should compute for the total time she needs to prepare (shower, dress, and eat) and walk to the bus.

So let t = Kendra's total prep time

In this case, we know that Kendra needs to wake up at least 75 minutes (or 1 hour 15 minutes) before 8:30 am in order to catch the bus.

**1 hour 15 minutes before 8:30am would be 7:15am**

Hence Kendra needs to wake up at 7:15am in order to catch the bus leaving at 8:30am