Answer:Whats the prompt so I know what to do?
Step-by-step explanation:
G-8=B you can't find out B (boys) until you know how many G (girls) there are in Mrs. Davis's class
Answer:
−7(2x−11)
use distributive property
-7(2x)-7(-11)
-14x+77
Answer:
72
Step-by-step explanation:
Answer:
51.877 kg
Step-by-step explanation:
a
See attachment for calculations
b
The amount of salt in the tank after 4 hours is gotten by simply replacing t in the equation from a, with 4 hours. Since the t gotten in a above is in minutes, we'd convert hours to minute as well. If we do that, we have
t = 4 hours = 4 * 60 minutes = 240 minutes
y = 160/3 (1 - e^((-3 * 240)/200))
y = 160/3 (1 - e^(-720/200))
y = 160/3 (1 - 0.0273)
y = 160/3 (0.9727)
y = 51.877 kg
Therefore, the amount of salt in the tank after 4 hours is 51.877 kg