In this problem, we want to figure how long it will take for a crew to frame 6 walls.
We are given the following information
• it takes 45 minutes to frame one wall
,
• there are 6 walls to frame
First, we need to multiply the time it takes to frame one wall by six:
It will take a total of 270 minutes to frame all six walls.
To change our time into hours, we divide by 60 minutes, since there are 60 minutes in an hour:
Since half an hour (0.5) is 30 minutes, we say it will take 4 hours, 30 minutes to frame all six walls.