SOLUTION: Roger can hang wallpaper on a square wall with 12ft sizes in 40 minutes assuming the wall paper is hung at the same rate how long will it take him to cover a square section of a wa

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Roger can hang wallpaper on a square wall with 12ft sizes in 40 minutes assuming the wall paper is hung at the same rate how long will it take him to cover a square section of a wa      Log On


   



Question 49738: Roger can hang wallpaper on a square wall with 12ft sizes in 40 minutes assuming the wall paper is hung at the same rate how long will it take him to cover a square section of a wall 6ft long
Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
Set up a proportional equation:
12feet/40 minutes = 6 feet/x minutes [Cross-multiply]
12x=(40)(6)
12x=240
12x/12=240/12
x=20 minutes [Final answer]
.
Check by pluggin x=20 back into the original equation.