Just multiply then add them and if the answer is to big then add and if it is to small sorry not that good at math but I️ try
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 .
4.4/20=0.22 per item
4.8/24=0.2 per item
Answer: 24 for 4.80
Answer:
Well go ask Erica how many magazines she has.
Answer:
x ≥ -7
Step-by-step explanation:
Divide both sides by 6
Then to graph it, you can make a number line