Posted by **Squid** on Tuesday, April 17, 2012 at 6:42pm.

I'm slightly confused about this question:

Suppose that you memorize a list of 100 German vocabulary words. Each week you forget 1/8 of the words you knew the previous week. The number of vocabulary words (V) that you remember after t weeks can be modeled by:

V=100(7/80)^t

Find the ratio of the number of words you remember in week 3 to the number of words you remember in week 9. Express your answer in simplest exponent form.

What is simplest exponent form?

I start with the ratio of:

100(7/8)^3:100(7/8)^9

do I cancel out everything except the 3:9?

- Algebra 1 (maths) -
**Squid**, Tuesday, April 17, 2012 at 7:10pm
Someone please help me!

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