alleshia2007
21.04.2021 •
Mathematics
An investor splits $10000 between two investment opportunities. In the end, the first investment yielded a return of 7% simple interest and the second yielded a return of 2% simple interest. If the investor earned $425 in total interest, how much money was invested in each?
Solved
Show answers
More tips
- C Computers and Internet How to Create a VKontakte App: A Detailed Guide...
- L Leisure and Entertainment When will Maslenitsa start?...
- F Food and Cooking Discovering the Mysterious Fruit of Feijoa...
- B Business and Finance How to Open an Online Store? A Detailed Guide for Beginners...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
Answers on questions: Mathematics
- M Mathematics HELP ME PLEASE The function y=15(0.84)^x models the amount y of a 15mg dose of antibiotic remaining in the bloodstream after x hours. How much remains after 8 hours? * A)7.52mg...
- M Mathematics PLZ Help ASAP I Dont understand...
- S Social Studies Consider the following scenario from the perspective of maslow’s hierarchy of needs theory: william has volunteered to serve a war-torn country to try to improve the lives of the...
- M Mathematics Abcd and efg are parallel lines. bc=cf. angle bfe=70°. work out the size of angle x with reasons...
- M Mathematics Consider triangle abc and triangle def graphed on the coordinate plane....
Ответ:
It is the first choice.
Step-by-step explanation:
This is a sequence where
the next term is obtained by adding 6.
first term = -9 + 6(0) = -9
second term = -9 + 6(1) = -3
third term = -9 + 6(2) = 3
4th term = -9 + 6(3) = 9
and 81 = -9 + (6*15).
So the answer is Sigma (-9 + 6n) from n= 0 to n = 15.