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Financial Mathematics and Proportion · Term 4

Finding Principal, Rate, or Time (Simple Interest)

Students will rearrange the simple interest formula to find unknown principal, interest rate, or time.

Key Questions

  1. Analyze the process of isolating a variable in the simple interest formula.
  2. Predict the impact of a higher interest rate on the total amount paid over time.
  3. Construct a problem where one of the variables (P, R, N) is unknown.

ACARA Content Descriptions

AC9M9N05
Year: Year 9
Subject: Mathematics
Unit: Financial Mathematics and Proportion
Period: Term 4

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