3. Elizabeth opened a library with 19,000 books in the year 1998. The number of books increases at a rate of 6.49% each year. Use a graph to predict the number of books in 2020.

A) ≈ 71,160

B) ≈ 75,779

C) ≈ 80,697

D) ≈ 66,824

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Mathematics

20 September, 22:57

3. Elizabeth opened a library with 19,000 books in the year 1998. The number of books increases at a rate of 6.49% each year. Use a graph to predict the number of books in 2020.

A) ≈ 71,160

B) ≈ 75,779

C) ≈ 80,697

D) ≈ 66,824

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Answers (1)

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Carrillo · Answer 1

The number of books increases at a rate of 6.49% each year so it's a growth function which is

V (t) = V0 (1+r) ^t

V (t) number of books in 2020?

V0 books in the year 1998 19000

R rate of growth 0.0649

T time 2,020-1,998=22 years

V (22) = 19,000 * (1+0.0649) ^ (22)

V (22) = 75,778.81 Round your answer to get 75779

3. Elizabeth opened a library with 19,000 books in the year 1998. The number of books increases at a rate of 6.49% each year. Use a graph to predict the number of books in 2020.A) ≈ 71,160B) ≈ 75,779C) ≈ 80,697D) ≈ 66,824

3. Elizabeth opened a library with 19,000 books in the year 1998. The number of books increases at a rate of 6.49% each year. Use a graph to predict the number of books in 2020.

A) ≈ 71,160

B) ≈ 75,779

C) ≈ 80,697

D) ≈ 66,824