My Math Forum  

Go Back   My Math Forum > High School Math Forum > Algebra

Algebra Pre-Algebra and Basic Algebra Math Forum


Reply
 
LinkBack Thread Tools Display Modes
February 21st, 2009, 10:54 AM   #1
Newbie
 
Joined: Feb 2009

Posts: 2
Thanks: 0

Can somebody help solve this problems please

A radio manufacturing firm has fixed cost of \$25.000 cost and variable cost of \$75.80 per radio. The radio sells for \$119.95.
Write an expression for the profit function and find the number of radios that must be sold to break even.

If money is invested at 9%, what is the effective annual rate if the investment is compounded
a) quarterly?
b) monthly?
c) daily?
d) countinuously?

Last edited by skipjack; November 4th, 2016 at 07:04 AM.
vloraboy is offline  
 
February 26th, 2009, 01:16 AM   #2
Global Moderator
 
Joined: Dec 2006

Posts: 19,708
Thanks: 1805

Why are there three zeros in the fixed cost? Is it typed correctly?

For the questions about interest rates, read this article.
skipjack is online now  
February 26th, 2009, 09:11 AM   #3
Senior Member
 
Joined: Sep 2008

Posts: 116
Thanks: 0

Re: CAN SOMEBODY HELP SOLVE THIS PROBLEMS PLEASE

If the zeros are correct and the fixed cost is just \$25.00, then you break even after the first radio because 119.95 - 25.000 - 75.80 = 19.15. Meaning you are making \$19.15 profit off the first radio sold.

Now, assuming the fixed cost is supposed to be \$250.00, the formula becomes






Because you can't sell .66 of a radio, round up to the nearest digit. So you need to sell 6 radios to start turning a profit. Total profit can be calculated with the function




************************************************** *************
************************************************** *************

As for the second question, I could be wrong, but here it goes:

Quarterly:

Monthly:

Daily:

Countinuously: not sure how to do this one though
You could do it with calculus though like



The limit should also equal I believe, again, don't quote me on it though...

Last edited by skipjack; November 4th, 2016 at 07:04 AM.
shynthriir is offline  
April 2nd, 2009, 01:05 PM   #4
Global Moderator
 
Joined: Dec 2006

Posts: 19,708
Thanks: 1805

That limit is 1-e^0.09, but is the formula correct?
skipjack is online now  
Reply

  My Math Forum > High School Math Forum > Algebra

Tags
problems, solve



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Can't solve these 3 problems Punmaster Linear Algebra 2 February 15th, 2013 10:59 AM
pls help to solve these problems... verynice2000 Algebra 3 February 19th, 2012 08:43 AM
Can you solve that problems? Rany Tandoom Algebra 6 October 24th, 2008 12:27 PM
Need help to solve few problems :( amero Calculus 3 August 14th, 2008 10:54 AM
CAN SOMEBODY HELP SOLVE THIS PROBLEMS PLEASE vloraboy Abstract Algebra 0 December 31st, 1969 04:00 PM





Copyright © 2018 My Math Forum. All rights reserved.