aladder attached to the side of a ship has ten rungs each one foot apart visible above the water if the water level rises 1.5 feet per hour how many rungs will be visible after 3 hours

5.5

1.5 * 3 = 4.5

10 - 4.5 = ?

I suggest you draw a diagram showing this problem.

To solve this problem, we need to account for the rising water level and determine how many rungs will still be visible after three hours.

Let's break it down:

1. The water level rises 1.5 feet per hour.
2. Initially, all ten rungs are visible above the water.

After the first hour, the water level will rise by 1.5 feet, which means the bottom rung will be submerged. So, only nine rungs will be visible.

After the second hour, the water level will have risen by another 1.5 feet, submerging the second rung. Therefore, only eight rungs will be visible.

After the third hour, the water level will have risen by an additional 1.5 feet, submerging the third rung. This means that only seven rungs will be visible.

So, after three hours, there will be seven rungs visible above the water.

In summary, the number of rungs visible above the water can be found by subtracting the number of hours from the total number of rungs initially visible. In this case, 10 (initial rungs) - 3 (hours) = 7 rungs will be visible.