Colon Colon
10/21/2024 · Middle School
What is the approximate balance after 20 years? Choose the correct answer below. \( \begin{array}{ll}\text { A. } \$ 200 & \text { B. } \$ 400 \\ \text { C. } \$ 100 & \text { D. } \$ 10 \\ \text { b) About how fast is the balance increasing after } 20 \text { years? } \\ \text { Choose the correct answer below. } \\ \begin{array}{ll}\text { A. } \$ 5 / y e a r & \text { B. } \$ 200 / y e a r \\ \text { C. } \$ 20 / y e a r & \\ \text { c) Use the answers to parts a) and b) to determine the interest rate. }\end{array} \\ \text { The interest rate is } \square \% .\end{array} \)
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To find the approximate balance after 20 years, you need the initial amount and interest rate, and whether the interest is compounded or simple. The rate of increase after 20 years depends on the type of interest and the specific values. To determine the interest rate, you can use the balance and initial amount in the appropriate formula.
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