Question

bob is hiking down a 12 mile trail. if he hikes 3 mph for 2 hours and hike 5 mph the rest of the mile, how many hours will it be

Answer 1

Bob will take 6/5 more hours to complete the trail.

Explanation:

1. First, let's solve how many miles Bob hiked when he was hiking 3 mph for 2 hours. To do this, we simply multiply the two values.

• 3 miles/hrs * 2 hrs = 6 miles (hrs cancel out)

2. Now that we know the distance Bob has already covered, we can subtract that from the total distance of the trail.

• 12 miles - 6 miles = 6 miles

3. Now that we know the rest of the distance Bob needs to cover, we can divide the rest of the distance by his new speed (5 mph).

• 6 miles / 5 miles/hrs = 6/5 hrs (miles cancel out)