What is the equation for compound interest

1 answer:

3 0

A = P(1 + r)^n

where A is the amount after n years, P = principal( initial amount), r = annual rate as a decimal fraction and n = number of years

If interest is accumulated say monthly then it would be

A = P(1 + r/12)^12n

For quarterly replace the 12 by 4

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Curtis threw 15 darts at a dartboard . 40 percent of his darts hit the bull's eye. how many darts did not hit the bull's eye

PIT_PIT [208]

40%=0.4
15*0.4
6
15-6
9 darts didn't hit the bull's eye

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A rack of 15 billiard balls is shown. If one ball is selected at random, determine the odds against it containing a number grea

andre [41]

Using the probability and odds concepts, it is found that the odds against it containing a number greater than or equal to 7 is $\frac{2}{3}$ .

A probability is the number of desired outcomes divided by the number of total outcomes.
An odd is the number of desired outcomes divided by the number of non-desired outcomes.

In the rack, there are 15 balls, numbered from 1 to 15. Of those, 6 are less than 7(against it containing a number greater than or equal to 7 is equivalent to it containing a number less than 7), thus: