Questions: Mia needs to complete an online course that is 12 hours long. Yesterday she completed 3.5 hours of the course and today she has completed 5.25 hours. How many more hours does Mia need to finish the online course?

Mia needs to complete an online course that is 12 hours long. Yesterday she completed 3.5 hours of the course and today she has completed 5.25 hours. How many more hours does Mia need to finish the online course?

Transcript text: Mia needs to complete an online course that is 12 hours long. Yesterday she completed 3.5 hours of the course and today she has completed 5.25 hours. How many more hours does Mia need to finish the online course?

Solution

Solution Steps

To find out how many more hours Mia needs to complete the course, we first need to calculate the total number of hours she has already completed by adding the hours from yesterday and today. Then, we subtract this total from the total course length to find the remaining hours.

Step 1: Calculate Total Hours Completed

Mia completed \(3.5\) hours yesterday and \(5.25\) hours today. Therefore, the total hours completed is given by: \[ \text{Total Hours Completed} = 3.5 + 5.25 = 8.75 \]

Step 2: Calculate Remaining Hours

The total length of the course is \(12\) hours. To find the remaining hours Mia needs to complete, we subtract the total hours completed from the total course hours: \[ \text{Remaining Hours} = 12 - 8.75 = 3.25 \]