SOLUTION: Alex paints 1/2 of a wall 6 feet by 9 feet in 1/5 of an hour. Find the work rate. Alex paints at a rate of how many square feet per hour? Round to nearest tenth if necessary .

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Alex paints 1/2 of a wall 6 feet by 9 feet in 1/5 of an hour. Find the work rate. Alex paints at a rate of how many square feet per hour? Round to nearest tenth if necessary .      Log On


   



Question 829257: Alex paints 1/2 of a wall 6 feet by 9 feet in 1/5 of an hour. Find the work rate. Alex paints at a rate of how many square feet per hour? Round to nearest tenth if necessary .
Found 2 solutions by ankor@dixie-net.com, josgarithmetic:
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Alex paints 1/2 of a wall 6 feet by 9 feet in 1/5 of an hour.
Find the work rate.
Alex paints at a rate of how many square feet per hour?
Round to nearest tenth if necessary .
:
Find half the area of a 9 by 6 ft wall
1%2F2 * (6*9) = 27 sq ft in 1/5 hr
therefore 5 * 27 = 135 sq/ft, his rate per hr

Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
How much AREA per HOURS? Calculate the amount of area and the amount of hours, and form their ratio, and compute.

Area painted: %281%2F2%29%286%2A9%29=3%2A9=27%2A+ft%5E2

Time in hours: %281%2F5%29%2Ahour

Painting rate: