The roots of this equation are 1 and -1. You can get this by factoring to the version below.
(x + 1)(x - 1)
Let P stand for the Paint crew...and you know that 75% of that crew = 105 people. So we know that...
P x .75 = 105
Divide both sides of the equation by .75 to solve for P...
P = 105/.75 = 140
So the total paint crew has 140 painters.
What what language is that I think it is Spanish I don't speak Spanish I speak English sorry I can't help u
7 hrs 12 minutes
6 hrs 46 minutes
6 hrs 53 minutes
--------------------------add
19 hrs 111 minutes ......... = (19 * 60) + 111 = 1140 + 111 = 1251 minutes
1251 / 3 = 417 minutes <== her average delivery....or 6 hrs 57 minutes
