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:
Step-by-step explanation:
So, when we dilate a triangle, it affects side measures.
So let's find it!


So, the sides of our new triangle is 4 and 12.
Let's find the area!

So, it is the first option! Hope this helps!
P.S. Stay Safe
Answer:
That should be the answer
Step-by-step explanation:
the formule is y = mx +b
m is the slope and b is the y-intercept
2/5 meter for 1 minute
6 meters for ? minutes
6 * 5/2 = 15 minutes
answer
15 min