The number of people living on a remote island decreases by 9% every 10 years. In 1950 there were 18000 living on the island. Calculate how many less people will be living on the island in 2020.

9,301 people

Step-by-step explanation:

First find the number of years that have passed:

= 2020 - 1950

= 70 years

Population decreases every 10 years so in 7 years it would have increased:

= 70/10

= 7 times

In 2020 therefore:

= 18,000 * (1 - 9%)⁷

= 9,301 people

true

step-by-step explanation:

intersecting chords are just lines that intersect. so a line is equal to 180 degrees, so when it is intersected by another chord, then it create supplementary angles, and because the lines cross, vertical angels are also formed.