Answer:
B
Step-by-step explanation:
The data of the poulation increased.
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 .
Answer:
-2(2x+4)
Step-by-step explanation:
Answer:
The solution is at the point (14, 15.5)
Step-by-step explanation:
I graphed the equations on the graph below.
If this answer is correct, please make me Brainliest!
maybe 1/5 (409) ::(880) 1+2