John threw a rock into a lake from a bridge 124 feet above the river surface the rock sinks 81 feet below the river surface. What is the distance between the elevations
The distance between the elevations is the sum of the distance above the river surface and the distance below the river surface.
Distance above river surface: 124 feet
Distance below river surface: 81 feet
Therefore, the distance between the elevations is 124 feet + 81 feet = 205 feet.
To find the distance between the elevations, you need to calculate the total vertical distance covered by the rock.
First, let's calculate the distance from the bridge to the water's surface:
124 feet (height of the bridge) + 81 feet (distance below the river surface) = 205 feet.
Therefore, the distance between the elevations is 205 feet.