Financial Math Answers

The marketing research department for a company that manufactures and sells laptop computers

established the following price-demand and cost functions, respectively:

p (x) = 1,000 - 25x

C(x) = 2,150 + 250x

where p() is the wholesale price in United States dollars at which y thousand laptops can be sold and

C(x) is in thousands of dollars. The domain of both functions is, 1 < x < 10.

formulate a revenue and a profit function

On 29 March 2022,Justin deposited 3500 into savings account.The simple interest rate agreed upon was7,5%per year.The accumulated amount in the savings on 10 october 2022 is

2. Monthly payments of P10,000 for 4 years that will start 3 months from now

a)     A woman who has won a prize is offered a lump sum of 100000 to invest now or 55000 to invest at the end of this year .If all investments are assumed to earn 7% per annum which should she choose if she wants to withdraw the money after

i)                  4 years

2 years             

Tshepo want to buy a big screen TV.She has five interests rates to choose from if she borrows the money from the bank.the cheapest option

*29%per year,compounded daily

*30%per year, compounded semi annually

*28.5%pet year, compounded weekly

*29.5%per year, compounded every 2 months.

On 29 March 202,Justin deposited 3500 into savings account.The simple interest rate agreed upon was7,5%per year.The accumulated amount in the savings account on 1 October 2022 is?

Determine the present value of loan if R12000 is due in 5 years,at a simple discount ra15% per annum

An effective rate of 29.61% corresponds to a nominal rate,compounded weekly,of?

Xander writes textbooks that sell for x dollars. He received a bonus of $2,500 for signing a contract, and he receives 8% commission on each book sale. Express the total amount of income Xander earns from selling y books algebraically.