rates interest

Matt borrows $6000 and clears his debt by paying $7000 after 4 months. Find the rate of interest charged per annum. The problem can be solved by ________. => Using a matrix or Using a rational equation or Applying a formula or None of the above..

An amount becomes $1500 in 3 years and $6000 in 4 years on compound interest. Find the rate of interest. => 4% or 3% or 2% or 5%..

Joe invested $7,400, part at an annual interest rate of 4% and the rest at 5%. He received a total annual interest of $350. How much did he invest at each rate? => $3,000, $7,435 or $4,050, $7,420 or $2,000, $5,400 or $3,025, $7,460..

Find the simple interest on a principal of $140 for a period of 4 years at an interest rate of 3%. => $15.80 or $16.80 or $17.80 or $18.80..

What will be the balance in an account after 4 years, if the annual rate of interest on a principal of $4000 is 3%? => $4480 or $480 or $4004 or $4960..

Olga earned $19.80 as interest in 4 years. Find the principal if the rate of interest is 3%. => $149.35 or $175.45 or $190.50 or $165..

Find the future value accumulated in an annuity after investing periodic payments $800 for 6 years at an annual interest rate 5%, with payments made and interest compounded quarterly. => $26200 or $22230 or $24230 or $20235..

Victor borrows $2700 from his friend to buy a car. The annual interest rate is 9.5%. How much interest should he pay his friend after one year? => $27 or $356.50 or $266.50 or $256.50..

Marissa deposited $900 in her savings account. The rate of simple interest is 5% per year. Find the balance at the end of 4 years. => $720 or $1080 or $180 or None of the above..

Jacob is planning to invest $1280 . Find the annual interest rate compounded quarterly which is required to triple his money in 15 years? => 7.4% or 9.6% or 8.7% or 6.5%..