Answer:

Step-by-step explanation:
10a + 9b = 3c
Subtract 9b to isolate the variable a.
10a = 3c - 9b
Now we need a singular a, so divide equation by 10.

So that's how you do it.
For the last part, you have to find where
attains its maximum over
. We have

so that

with critical points at
such that





So either

or

where
is any integer. We get 8 solutions over the given interval with
from the first set of solutions,
from the set of solutions where
, and
from the set of solutions where
. They are approximately






How to multiply 27 times 27 in partial form 1
Solving the system of equations, we get value of c= 10 and value of d= 7
Step-by-step explanation:
Solving the system of equations:

Let:

Adding eq(1) and eq(2)

So, value of c = 10
Now putting value of c in equation 1 to find value of y

So, value of d =7
Solving the system of equations, we get value of c= 10 and value of d= 7
Keywords: System of equations
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