(a) Heather borrowed $5000 from her grandmother as a down payment on her first car. She promised to repay the debt in 2 years at 7% per annum, simple interest. How much should Heather repay her grandmother? (b) How much must Jason deposit in a special account paying interest at the rate of 9.5% to receive $75.21 in interest after 6 months? (c) An investment of $4500 gained $337.50 in intesest in 9 months. What rate of yearly intesest did the investment pay?
(a) Heather borrowed $5000 from her grandmother as a down payment on her first car. She promised to repay the debt in 2 years at 7% per annum, simple interest. How much should Heather repay her grandmother? (b) How much must Jason deposit in a special account paying interest at the rate of 9.5% to receive $75.21 in interest after 6 months? (c) An investment of $4500 gained $337.50 in intesest in 9 months. What rate of yearly intesest did the investment pay?
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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