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1.      A company is offering a job with a salary of Rs. 50,000.00 for the first year and a 4% raise each year after that. If that 4% raise continues every year,

a)        Find the total amount of money an employee would earn in a 10-years career.


Question 15

Marang borrowed money that must be repaid in nine payments. The first four payments of R2 000 each are

paid at the beginning of each year. Thereafter five payments of R5 000 each are paid at the end of each year.

Note there is only one payment per year. If money is worth 6,85% per year, then the present value of these

payments is

[1] R33 000,00.

[2] R27 845,64.

[3] R22 588,92.

[4] R23 054,54.

[5] R27 381,02.


an economist <b><i>believes</i></b> there is a linear relationship between the market price of a particular commodity and the number of units <b><i>suppliers</i></b> of the commodity are willing to bring to the marketplace. two sample observations indicate that when the price equals $15 per unit, the weekly supply equals 30000 units, and when the price equals $20 per units, the weekly supply equals 48000 units.

1) Predict the weekly supply if the market price equal $25 per unit.


Moses invests R3 745,35 at the end of each month at an interest rate of 14,5% per year, compounded
monthly. How long will it take him to have R1 000 000,00? Give your answer to the nearest year.

Samuel wants to make regular annual payments of size P dollars into an annuity that pays

interest of an annual rate of 0.25 or 25%. He wants to have 1.5 times the invested amount

in the account after 5 years.

A) Determine the size, P of the required annual payment.

B) Create a table and do a step by step calculation to verify your answer in part A


James takes out a loan of $100,000 at an annual interest rate of 15%. He must make

annual payments to pay the loan back in 4 years.

A) Use the formula to determine the amount of annual payment, R

B) Create a table to show his outstanding balance on the 3rd year of payment.


Suppose you invested $50,000 into an account at a private bank that attracts annual

interest of 20% using this formula

A= Pe^rt . How long would it take to ensure it

grows to become $88,000?



Suppose that an amount in dollars, is invested in a private financial institution, with interest

compounded continuously at 8% per year.

a) Write the equation in terms of P, and 0.08 where P, is the starting amount

invested. And the final balance in the account is denoted with variable P

b) Suppose that $2000 is invested. What is the total amount in the account after 3

years?

c) How many years will it take to have more than the invested amount



a capital of 500 dollars earns 150 dollars of interest in 6 years. What was the 

interest rate if compound interest is used? What if simple interest is used?


a capital of 500 dollars earns 150 dollars of interest in 6 years. What was the

interest rate if compound interest is used? What if simple interest is used?