The number of travelers traveling through airports decreases by 10% each day after Christmas. If a small airport has 6,020 travelers the day after Christmas, how many do they have two days later?

Question

Quizplus · Accepted Answer

First we find the number of travelers the next day.  If the number of travelers has decreased by 10%, this means that the number of travelers the next day will be 90% of the first day.  To find this value, we need to start with converting the percentage to a decimal. Since percentages are also fractions with 100 as the denominator, we can divide the percentage by 100 to get the decimal.
6,020 x 0.90= 5,418
We then find the decrease the day after that by repeating the same process, since the number will decrease by another 10%.  This means it will be 90% of the previous day's numbers.
5,418 x 0.9 = 4,876.2, which rounds to 4876.

The Number of Travelers Traveling Through Airports Decreases by 10