At least 14 economy and at least 5 deluxe...total of 45 seats. He makes a bigger profit from selling economy seats....so we need the most economy seats we can get.
45 seats - 5 deluxe = 40 economy
so the most profit would be 40 economy and 5 deluxe
40 economy = (40 x 30) = 1200 profit
5 deluxe = (5 x 25) = 125 profit
for a maximum profit of : $ 1325
Answer:
7.87 years
Step-by-step explanation:
#First we determine the effective annual rate based on the 9% compounded semi annual;

#We then use this effective rate in the compound interest formula to solve for n. Given that the principal doubles after 2 yrs:

Hence, it takes 7.87 years for the principal amount to double.
Answer:
7.5
Step-by-step explanation:
Answer:
Required solution is
where A and B are constants.
Step-by-step explanation:
Given nonhomogenous differential equation is,
with 
To find another solution, consider
be such that,

Hence,
where A and B are constants.
Let



Hence,
where A and B are constants.
which is required solution.
here is ur answer
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