Answer:
Drain A 
Drain B 
Step-by-step explanation:
Let
x------> the time in minutes
y-----> the volume of the pool in gallons
we know that
The equation that represent the situation is equal to

solve for x

Drain A

In this case we have


substitute

Drain B

In this case we have


substitute

Answer:
12.8822738774
Step-by-step explanation:
this is that answer
Answer:
x^2 +2x+xy +2y
Step-by-step explanation:
(x + y) (x + 2)
FOIL
first x*x = x^2
outer x*2 =2x
inner y*x= xy
last = y*2 =2y
Add together
x^2 +2x+xy +2y
Answer: x
+
15
y
Step-by-step explanation:
Answer:
0.8
Step-by-step explanation:
y=1
1+3=4
-5x ÷5
4÷5 = 0.8