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 .
Well 746÷40=18.65 so would that be 18?
Answer:
11/25
Step-by-step explanation:
Company X - 5.00-.37=4.63/.08=57
You get 57 minutes for this company
Company Y - 5.00-.52=4.48/.14=32
You get 32 minutes for this company
Company X gives you more minutes for $5.00
