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Geometric Series  Problem 4
Alissa Fong
Alissa Fong
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
Sometimes when people have bank accounts, they deposit one lump amount and leave it. Others deposit a fixed amount every year and that is the case we look at here in "repeated investment" problems. The first term in your sequence should be the amount of money in the account after the first year's interest is paid. From there, use the interest rate, r, as a decimal and n as the number of years to find the total sum of money in the account after a certain amount of time.
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Alissa Fong
M.A. in Secondary Mathematics, Stanford University
B.S., Stanford University
Alissa has a quirky sense of humor and a relatable personality that make it easy for students to pay attention and understand the material. She has all the math tips and tricks students are looking for.
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Sample Problems (14)
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Problem 1 8,564 views1 + 1 + 3 + ... 6 2 2 Find S_{7} 
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Problem 2 7,013 viewsSum:
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Problem 3 6,639 views_{7} ∑ 8(½)^{n} ^{i = 2} 
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Problem 4 1,422 views 
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Problem 5 1,150 views 
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Problem 6 1,370 views 
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Problem 7 1,217 views 
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Problem 8 1,264 views 
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Problem 9 1,138 views 
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Problem 10 1,105 views 
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Problem 11 1,135 views 
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Problem 12 1,094 views 
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Problem 13 1,176 views 
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Problem 14 1,292 views
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