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LET Review · General Education MathematicsLICENSURE REVIEWS
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LET Review · General Education Mathematics · Topic 1 · 1 of 16

Patterns, Fibonacci and the golden ratio

Read number patterns, extend sequences, and see the Fibonacci numbers and the golden ratio at work in nature and design.

LET-style drill: Patterns, Fibonacci and the golden ratio

5 questions · Choose an answer or write your response, then check your work. Free preview: your answers are checked here and not saved.

1. What is the sum of the first 4 terms of 2, 6, 18, …? (1 point)
2. The fraction 89/55 is closest to which value? (1 point)
3. A theatre has 17 seats in the first row and 6 more in each row after it. How many seats are in the first 9 rows? (1 point)
4. In the Fibonacci sequence, F(20) = 6,765 and F(21) = 10,946. What is F(23)? (1 point)
5. A culture of 500 bacteria doubles every 3 hours. How many bacteria are there after 18 hours? (1 point)

Practise again

Regenerate the questions for a fresh round with new numbers. Concept questions come back reshuffled. Keep going until you master the lesson.

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