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Archive for the ‘Mathematics – Algebra’ Category

College Math Word Problems

Each answer must have all the steps that you used to arrive at that answer.

(1) The sale price of a spring break vacation package was $209.99, and the travel agent said by booking early, you saved $25. Find the percent decrease in price.


(2)Aaron had an unpaid balance of $1637.05 on his credit card statement at the beginning of March.  He made a payment of $150.00 during the month, and made purchases of $368.28.  If the interest rate on Aaron's credit card was 2.5%per month on the unpaid balance, find his finance charge and the new balance on April 1.


(3)A credit card statement showed these transactions during October.

October 1      Previous balance   $292.47

October 8      Purchases

Quadratic Functions


One of the many applications of quadratic functions in called the Profit Parabola.  The Profit Parabola can be seen if we investigate the following scenario:

The business manager of a 90 unit apartment building is trying to determine the rent to be charged.  From past experience with similar buildings, when rent is set at $400, all the units are full.  For every $20 increase in rent, one additional unit remains vacant. What rent should be charged for maximum total revenue?  What is that maximum total revenue?

1. To help solve the above scenario, perform an internet search for Profit Parabola or Applications of Quadratic Functions.  List the URL of one of the applications that you find.

URL ___________________________________________________________________

2. Go to to see the process used for determining the quadratic function for revenues R(x) as a function of price hikes x on page 3 with the canoe-rental business