Posted by **aelisha** on Friday, October 3, 2008 at 9:28pm.

For groups of 80 or more people, a charter bus company determines the rate per person according to the formula:

Rate=8-0.05(n-80),n(greater than or equal to)80

where the rate is given in dollars and 'n' is the number of people.

Now, Express the revenue 'R' for the bus company as a function of 'n'.

- pre-calculus -
**Reiny**, Friday, October 3, 2008 at 9:40pm
Your equation already expresses the revenue R as a function of n

Did you want to express n as a function of R ?

If so, expand it first, then solve for n

R = 8 - .05n + 4

R = 12 - .05n , this is the simplest R expressed as a function of n

.5n = 12 - R

n = (12 - R)/.05

- pre-calculus -
**aelisha**, Friday, October 3, 2008 at 10:41pm
well the problem does say express the revenue for the bus company as a function of n.

maybe this will help:

here are the answer choices:

1.(4+0.05n)n

2.(12-0.05n)n

3.12n+4

4.none of these

5.80n

6.8n-4

thanx so much

## Answer this Question

## Related Questions

- 12th grade calculus - your operate a tour service that offers the following rate...
- pre-algebra - measuring your heart rate is one way to check the intensity of ...
- CALCULUS!!!(revised) please help - A price (in dollars) and demand for a product...
- Calculus - At the moment OHaganBooks is selling 1000 books per week and its ...
- Calculus - At the moment OHaganBooks is selling 1000 books per week and its ...
- College Math - The "learning curve" describes the rate at which a person learns ...
- Calculus - At the moment OHaganBooks is selling 1000 books per week and its ...
- CALCULUS!!! - A price (in dollars) and demand for a product are related by If ...
- calculus - the monthly payment that amortizes a loan of A dollars in t yr when ...
- ALG/TRIG - I cannot seem to get the right answer. Animal Pulse Rate According to...