Question

Juan went on a hiking trip. The first day he walked 18 kilometers. Each day since, he walked 90% of what he walked the day before. What is the total distance Juan has traveled by the end of the 10th day?

Answer 1

The answer is in the photo

Answer 2

90% of 18 kilometres - 16.2

he walked 16.2 kilometres everyday

16.2 x 9 = 145.8

145.8 + 16.2 = 162kilometres

by the end of the 10th day, he would have travelled 162 kilometres

(i’m so sorry if this is wrong) merry christmas!!