Question

Eva sees a dolphin 3.2 meters below sea level and a bird 47/10 meters above sea level. Which of the following expressions represents the vertical distance between the dolphin and the bird?

Answer 1

7.9 meters apart from each other

Answer 2

Vertical distance between dolphin and the bird is 7.9 meters.

Explanation:

Eva sees a Dolphin at the distance 3.2 meters below the sea level.

At the same time she sees a bird
`(47)/(10)` meters above the sea level.

Therefore, vertical distance between the dolphin and the bird = Distance of dolphin below the sea level + Distance of the bird above the sea level

= 3.2 +
`(47)/(10)`

= 3.2 + 4.7

= 7.9 meters

Answer is 7.9 meters.