vestments. Ana and Johnny made two invest- ents totaling $45,000. In one year, these investme Ided $2430 in simple interest. Part of the money invested at 4% and the rest at 6%. How much rted at each rate?
Permutations and Combinations
If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.
Counting Theory
The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.
(8.4 q.14) PLEASE SHOW STEP BY STEP THE ANSWER AND HOW TO SOLVE IT.
![14. Investments. Ana and Johnny made two invest-
ments totaling $45,000. In one year, these investments
was invested at 4% and the rest at 6%. How much w
yielded $2430 in simple interest. Part of the r
money
was
invested at each rate?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb0c37f70-2e45-4867-bab2-6e0f17dee3d3%2Fb08f6292-72c8-4d11-b083-a5719d8bc529%2Fj3yldyk_processed.jpeg&w=3840&q=75)
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