Answer:
It will take 150 hours to fill all 3 tanks at a time.
Step-by-step explanation:
Water flows in pipe 1 at a rate of 25,000 gallons per hour.
Other pipe at a rate of 45,000 gallons per hour.
Water leaves the system at a rate of 60,000 gallons per hour.
There are 3 of these tanks and each tank holds 1 million gallons.
Each tank is half full.
So, total capacity of 3 tanks = 3 millions and it is half full.
The water need to be filled = 1.5 millions. At the same time 60,000 gallons of water leaving out.
25,000 x + 45,000 x - 60,000 x = 1.5 millions
70,000x -60,000x = 1500000
10,000x = 1500000
Dividing both sides by 10,000, we get
x = 150 hours
Therefore, it will take 150 hours to fill all 3 tanks at a time.
Answer:
D. -1.2(3x-40)
Step-by-step explanation:
Multiply -1.2 x 3x and -1.2 x -40.
-1.2 x 3x= -3.6x
-1.2 x -40= 48 (two negatives cancel each other out, so it will be +48)
= -3.6 +48.
You can also automatically eliminate B. and C. because multiplying the -4 within the perenthesis would not give you 48.
A. says (3x + 40), which would give us a negative 48.
Looks like you're given an equality between two matrices,
Two matrices are equal if the entries in the same positions (row and column) are equal. This means
We can ignore the last one, since it's clearly true. For the remaining, we get
Answer:
y = 1/6x - 9
Step-by-step explanation:
The slope-form intercept formula is y = mx + b
