Answer:
B(-1,1) so you can find that when you calculation for the basic principles
Answer:
Step-by-step explanation:
Given
--- Flow rate of the shower
--- Drain rate of the bathtub
-- Bathtub size
Required
Determine the maximum time of shower
First, we calculate the rate at which the bathtub fills.
The maximum time of shower is:
Looking at D: If you subtract 8 from both sides of this inequality, you obtain
x<-11, which is the correct answer.
Hi!
First, let me explain that open circles mean that the answer starts after or before that number. So if the answer is c < 4, the answer would be D, and not B.
If the answer was c ≤ 4, the answer would be B, and not D.
I hope that makes sense. Now let's solve the inequality.
Remember that whatever we do to the inequality, we have to do it to both sides.
We need to isolate c on one side.
10c + 5 ≤ 45
Start by subtracting 5 from both sides.
10c + 5 - 5 ≤ 45 - 5
10c ≤ 40
Divide by 10 on both sides.
10c/10 ≤ 40/10
c ≤ 4
The answer is B.
Hope this helps! :)
