SOLUTION: Jane can paint a 12 foot by 12 foot wall in 3/4 of an hour. How long will it take her to paint another wall that is 15 x 16 ft. Do not use cross multiplication.Draw a picture.

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Jane can paint a 12 foot by 12 foot wall in 3/4 of an hour. How long will it take her to paint another wall that is 15 x 16 ft. Do not use cross multiplication.Draw a picture.      Log On


   

Question 444102: Jane can paint a 12 foot by 12 foot wall in 3/4 of an hour. How long will it take her to paint another wall that is 15 x 16 ft. Do not use cross multiplication.Draw a picture.
Answer by rwm(914) About Me  (Show Source):
You can put this solution on YOUR website!
12*12=144 sq ft
15*16=20*12=240
20*12/12*12
20/12=5/3
5/3*3/4=5/4 hrs= 1.25 hrs