The answer is C: first add 2 both sides then divide both sides by -5.
Answer:
t = 460.52 min
Step-by-step explanation:
Here is the complete question
Consider a tank used in certain hydrodynamic experiments. After one experiment the tank contains 200 liters of a dye solution with a concentration of 1 g/liter. To prepare for the next experiment, the tank is to be rinsed with fresh water flowing in at a rate of 2 liters/min, the well-stirred solution flowing out at the same rate.Find the time that will elapse before the concentration of dye in the tank reaches 1% of its original value.
Solution
Let Q(t) represent the amount of dye at any time t. Q' represent the net rate of change of amount of dye in the tank. Q' = inflow - outflow.
inflow = 0 (since the incoming water contains no dye)
outflow = concentration × rate of water inflow
Concentration = Quantity/volume = Q/200
outflow = concentration × rate of water inflow = Q/200 g/liter × 2 liters/min = Q/100 g/min.
So, Q' = inflow - outflow = 0 - Q/100
Q' = -Q/100 This is our differential equation. We solve it as follows
Q'/Q = -1/100
∫Q'/Q = ∫-1/100
㏑Q = -t/100 + c

when t = 0, Q = 200 L × 1 g/L = 200 g

We are to find t when Q = 1% of its original value. 1% of 200 g = 0.01 × 200 = 2

㏑0.01 = -t/100
t = -100㏑0.01
t = 460.52 min
Answer:
(3,6)
Step-by-step explanation:
The triangle shown in figure is translated up 5
To find how coordinate of C
Original coordinate of C:(2,1),
Translation has two types: verbal and horizontal.
For verbal translation: either shift up or down
1. For up shift: add value in Y-cordinate
2. For down shift: subtract value in y coordinate
• For horizontal translation: either shift left or right
I. For left shift: subtract value in x-cordinate
II. For right shift: add value in x-cordinate
C: (3,1)shift 5 unit up
So, add 5in y-cordinate
(3,1)→(3,1+5)
(3,1)→(3:6)
Hence, the new coordinate of point C is (3,6)
if your wondering what 7 times 3073 is then your answer is 21511. If your looking for something else I don't understand it then. Hope this helps!
Answer:
Step-by-step explanation:
Multiply the decimal by 100 and write the result with the percentage sign: 0.75 × 100 = 75%.