Combine like terms . Please help me I am an vacation and I don't know how to do this
2 answers:
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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
We have that
therefore
case a)
Is equivalent
case b)
Is not equivalent
case c)
Is equivalent
case d)
Is not equivalent
case e)
Is equivalent
Hence
the answer is
therefore
case a)
Is equivalent
case b)
Is not equivalent
case c)
Is equivalent
case d)
Is not equivalent
case e)
Is equivalent
Hence
the answer is
Answer:
(3,10)
Step-by-step explanation:
When x is 3
y is 11, and this is invalid because it is not at accord.