Answer:
40 hours will it take for the pool to fill.
Step-by-step explanation:
A pump can fill a swimming pool in 8 hours.
Work done by pump to fill in 1 hour is 
The pool also has a drain that can empty the pool in 10 hours.
Work done by pump to drain in 1 hour is 
If someone turns on the pump to fill the pool, but forgets to shut the drain.
Work done by both pipe in 1 hour is
Both pipe filled 
part of pool in hours = 1
Both pipe filled complete pool in hours = 
Therefore, 40 hours will it take for the pool to fill.
Answer:-2x+y=-5
Step-by-step explanation:
Answer:
1.213089131E-19
Step-by-step explanation:
don't ask me how i did it XD
Answer: She will cut 25 pieces
Step-by-step explanation:
The total length = 5 m
She want to o cut many 1/5 meter long pieces from the ribbon
pieces she can cut from the ribbon will be
5 ÷ 1/5 = 5 × 5 = 25 pieces
Answer:
Option D. (0, 2)
Step-by-step explanation:
we have
This is a exponential function of the form
where
a is the initial value
b is the base
r is the rate of change
In this problem
a=2 ---> the initial value ( value of the function when the value of x is equal to zero)
b=3
b=1+r ----> 3=1+r ----> r=2 ---> r=200%
Remember that
The initial value of the function is equal to the y-intercept
The initial value is the point (0,2)
therefore
The y-intercept is the point (0,2)
