John wants to save 6 video files on his thumb drive.

Question

John wants to save 6 video files on his thumb drive. The length of the videos is shown in the table. Estimate to the nearest minute the total time taken for all 6 videos to play.

 

Video                               Video Length
STEM presentation             2 minutes 52 seconds
Intro. To Right Triangles     2 minutes 28 seconds
Snakes of SC                    4 minutes
Scientific Notation              3 minutes 10 seconds
Engineering Principles        4 minutes 45 seconds
Adding art to STEM            1 minutes 32 seconds

Answer 1

First just add all the seconds up and convert to minutes.

 

52 + 28 + 10 + 45 + 32 = 167 seconds

 

(167sec)/(60 sec/min) = 2 57/60 minutes

 

Round this to 3 minutes and add to the other minutes:

 

2 + 2 + 4 + 3 + 4 +1 + 3 = 19 minutes

Answer 2

Let's convert the length of all the presentations to seconds 

 

STEM presentation : 172 seconds

 

Intro. to right triangles : 148 seconds

 

Snake of SC : 240 secs

 

Scientific notation : 190 seconds

 

Engineering principles : 285 seconds

 

Adding art to STEM : 92 seconds

 

Total amount of time : 1127 seconds

 

Finally we convert it to minutes which is done as follows

 

1127  / 60 = 18.783 rounded to the nearest minute would be 19 minutes.