68% is around 70%
70% of 1 is 0.7
0.7'*3=2.1
Hope this helps :)
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:
The value of
is 10.
Step-by-step explanation:
If APR and SPL are vertical angles, then we get that
. Given that
and
, we find that the value of
is:



The value of
is 10.
Answer:
USe Symbolab Calculator Trust me it really helps don't worry
Step-by-step explanation:
Answer:
318 mm2
Step-by-step explanation:
Please see the step-by-step solution in the picture attached below.
Hope this answer can help you. Have a nice day!