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Phổ biến Word Problems >

savings account is set up, so that the simple interest earned on the investment is moved into separate account at the end of each year. If an investment of $7000 accumulate $910 of interest in the account after 2 years, what was the annual simple interest rate on the savings account?

Lời Giải

Lời Giải

Rate : (- 43.5%)

Các bước giải pháp

Translate the problem into an equation:

910 = 7000 (1 + r \cdot 2)

Giải

r, 910 = 7000 (1 + r \cdot 2) : r = - 43.5%

Rate : (- 43.5%)

Ví dụ phổ biến

The sum of two consecutive odd numbers is 48 . Find the two numbers.Three less than a number is twelve.the sum of two numbers is 9 and the sum of their squares is 41. find the two numbers The hiệu between the squares of two consecutive integers is 29 twice a number is 500 more than six times the number