------------------------------------------- 15 thank ya
Answer:
|-3| = 3
|3| = 3
Step-by-step explanation:
The answer is 867.
3^3 = 27
27•32 + 12/4
864 + 3 = 867
X=time of the third person it would take to fill the pool
We can suggest this equation:
6[(1/20) + (1/15) +(1/x)]=1
6[(3x+4x+60)/60x]=1
(7x+60)/10x=1
7x+60=10x
7x-10x=-60
-3x=-60
x=-60/-3
x=20
Answer: the third person alone would fill the pool in 20 hours .
Ax + By = C. -A/B is the slope and C is intercept
