Question

the eifell tower 324 m tall. the height was halved repeatedly to make a model around 30 cm. what power of 2 was the height divided by?

Answer 1

n=3

Explanation:

324/2^ n. = 30

324/30 = 2^n

Log 324/30 = Log 2^n = n x Log2

n = Log 324/30 ÷ Log 2

n = 3.43...

as n musg be an integer, thus

take n=3. or 4 will makd the midel height cliase to 30m