Answer: 19 mins
Step-by-step explanation:
hope this helps
The correct answer for this would be X=10
Are we supposed to find the area? If so, It's 36 because 6 times 6 equals 36 :p Hope I helped.
1) in one minute for first wiil be 1/20
the other 1/30, it means that A paint in one minute 1/20 and B 1/30 then A+B in one minute 1/20 + 1/30 = 3+2/60 = 5 / 60, 5/60 = 1/12
if in one min they make 1/12 then in 12 min they paint all the wall
if f(x)= 2x^2 - 5x
