Answer:
dA/dt= 12-2A(t)/900+t
Step by step Explanation:
Given:
rate of 3 gal/min
concentration of the solution entering is 4 lb/gal,
The equation of the solution can be expressed as
dA/dt = R(1)- R(2)
Where R(1)=( concentration of the salt at inflow* rate of input of given brine)
R(2)= ( concentration of the salt at inflow* rate of output of given brine)
R(1)= 3 gal/min× 4 lb/gal=12Ib/min
But the solution is been pumped slowly, the rate of the accumulation can calculated as;
(3 gal/min- 2 gal/min)=1gal/min
But after t min we will be having 900+t gallons present in the tank
CHECK THE ATTACHMENT FOR COMPLETE EXPLANATION
Answer:
your face hahahahhahahahah it's funny ik
Answer:
Length = 8 ft.
Step-by-step explanation:
The perimeter of a rectangle can be represented by the formula P = 2w + 2l, where w is the width and l is the length.
Given what we're told, we can represent the length for this problem using the equation l = w + 3
Thus, to find the length, we plug in everything we know:
26 = 2(w +3) + 2w
26 = 2w + 6 + 2w
26 = 4w + 6
20 = 4w
5 = w
l = 5 + 3 = 8
The answer is similar because paraell is lines and not all circles are congruent