Posted by **Yvonne** on Monday, April 16, 2012 at 2:19pm.

The "learning curve" describes the rate at which a person learns certain tasks. If a person sets a goal of typing N words per minute (wpm), the length of time t (in days) to achieve this goal is given by the following formula. t=62.5ln(1-N/80)

(a) According to this formula, what is the maximum number of words per minute?

(b) Solve for N.

.

- College Math - typo? -
**Steve**, Monday, April 16, 2012 at 4:18pm
ln(x) is only defined for x>0, so 1-N/80 > 0

That is, N<80

The problem here is that 1-N/80 < 1, so ln(1-N/80) is negative. But, t must be positive.

Typo?

## Answer this Question

## Related Questions

- Alegbra - the learning curve describes the rate at which a person learns certain...
- alegbra - The learning curves describes the rate at which a person learns ...
- Typing - When determining wpm (words per minute), does it include typing numbers...
- math - A person can type 15 words in 1/4 of a minute. What is his average typing...
- Math - To get a job as a receptionist you have to be able to type 60 words per ...
- grammar - I have learned how to formulate personal learning goals SMART. ...
- communication - Social science research indicates which one of the following ...
- statistics - mean = 60 wpm standard deviation= 15 wpm a.What is the probability ...
- algebra - A person’s maximum heart rate is the highest rate, in beats per minute...
- pre-algebra - measuring your heart rate is one way to check the intensity of ...

More Related Questions