Suppose you invest $10,000 in a mutual fund that earns 6% annual interest. What is the value of your investment 30 years later?
1 answer:
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For this example, we must combine not permutate; this because a salad in which you first use apple then tomato is the same as the one in which you use first tomato then apple, so order does not matter.
Me must do "10 combine 7" which is written by the binomial coefficient
; in general a binomial coefficient is written by:
In which
and 
are positive integers, such that 
.
So, for this problem:
Hence, there are 120 different ways to make the fruit salad.
Me must do "10 combine 7" which is written by the binomial coefficient
In which
So, for this problem:
Hence, there are 120 different ways to make the fruit salad.
Answer:
first, u need to know the formula for compound interest, which is:
where A is the final amount
P- initial amount
r- percent compounded(interest)
and
n- number of years
so
we have
3.8/100 = 0.038
1+0.038 =1.038
1.038^4 = 1.160885573136
475 * 1.160885573136 = 551.4206472396
approximately $551.42