Terminology (Leaving Cert Mathematics): Quizzes

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Terminology
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In simple interest, the interest is calculated on which amount?

The original principal amount only

How does simple interest behave over time?

It remains constant over time

In the formula SI=P⋅r⋅tSI = P \cdot r \cdot t, what does PP represent?

Principal amount (initial investment)

What is compound interest calculated on?

Principal & accumulated interest

How does compound interest growth compare to simple interest?

It grows faster than simple interest

In the formula A=P⋅(1+r)tA = P \cdot (1+r)^t, what does AA represent?

Total amount after tt years

What does APR include besides the interest rate?

Additional fees or costs

What does APR measure?

Annual cost of borrowing or return

What assumption does AER make about interest?

Interest is compounded over the year

What is the main purpose of AER?

To compare savings accounts easily

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