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 .
Mean is just another word for average. To find the average of something you must add up all values and divide by the number of values in the set.
Go 14 miles east to pool
Go 9 miles north to school
Go 12 miles west to bank
5×7-13=22
which
5 times b-13=22
Answer:
lol
Step-by-step explanation:
