Answer:
11 is the root of 121 ........
Answer:
8
Step-by-step explanation:
when multiplying two negative, it turn into a positive.
I think it’s B. 7.50+1.50x<_15
If

is the amount of salt in the tank at time

, then the rate at which this amount changes over time is given by the ODE


We're told that the tank initially starts with no salt in the water, so

.
Multiply both sides by an integrating factor,

:




Since

, we have

so that the amount of salt in the tank over time is given by

After 10 minutes, the amount of salt in the tank is