3(x+5y−4)−4x−11+5a+3b−6c+2a−4b+13c
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Answer
Find out the how long will it take the submarine to descend to the ocean floor
To proof
Formula
where d = distance traveled (or descended),
r = rate of travel , t = time
As given
A submarine descends at a rate of 2.6 kilometers per hour. If the ocean floor is 6.24 kilometers below sea level .
put all the values in the above formula
t = 2.4 hour
it take 2.4 hours the submarine to descend to the ocean floor .
Hence proved
Let
x--------> the number of sessions
y-------> the total payment
we know that
without membership:
--------> equation
with membership:
--------> equation
using a graph tool------> resolve the system of equations
see the attached figure
the solution is the point
that means
For
the cost is in both forms
so
to justify buying the membership
therefore
<u>the answer is</u>
