Bryan hiked 8.48x 105 feet last summer. There are approximately 5.3x 10 feet in

a mile. About how many miles did he hike?

Select one:

O 160 miles

1.6 miles

1,600 miles

16 miles

Answer: the number of miles that Bryan hiked is 160

Step-by-step explanation:

Total distance that Bryan hiked last summer was 8.48x 10^5 feet.

There are approximately 5.3 x 10^3 feet in a mile. Converting 8.48 * 10^5 feet to miles, it becomes

8.48 * 10^5/5.3 x 10^3

Applying the rules of indices which is expressed as

a^x : a^y = a^ (x - y)

It becomes

= 1.6 * 10^ (5 - 3)

= 1.6 * 10^2

= 160 miles