Question

A helicopter is 14 meters above a canyon. It goes down 20 meters, then up 5. Write a subtraction sentence and draw a model to find its new position relative to the top of the canyon wall.

Answer 1

The new position of the helicopter relative to the top of the canyon wall is -1 meter.

Step-by-step explanation:

To find the new position of the helicopter relative to the top of the canyon wall, we can use a subtraction sentence and draw a model.

The subtraction sentence can be written as:

14 - 20 + 5

First, we subtract 20 from 14 because the helicopter goes down 20 meters. This gives us -6.

Then, we add 5 to -6 because the helicopter goes up 5 meters. This gives us -1.

So, the new position of the helicopter relative to the top of the canyon wall is -1 meter.

To better visualize this, we can draw a vertical line representing the canyon wall. We start at the top with a point at 14 meters. Then, we go down 20 meters to a point at -6 meters. Finally, we go up 5 meters to a point at -1 meter, which represents the new position of the helicopter relative to the top of the canyon wall.