Answer:
(B)
Step-by-step explanation:
Volume of fluid in the tank =1000 gallons
Initial Amount of Salt in the tank, A(0)= 30 pounds
Incoming brine solution of concentration 2 pounds of salt per gallon is pumped in at a rate of 4 gallons per minute.
Rate In=(concentration of salt in inflow)(input rate of brine)
The resulting mixture is pumped out at the same rate, therefore:
Rate Out =(concentration of salt in outflow)(output rate of brine)
Therefore:
The rate of change of amount of salt in the tank,
Answer:
area of the trapezoid=1/2(7+12)×5
=47.5cm
Answer:
if adding its 139 if u subtract then its 11
Step-by-step explanation:
Answer:
u = 5 and 2/3
Step-by-step explanation:
19 out come
9 for the first 3 questions
10 for the last 5 questions
Hope this helps ;)