Question

caleb, jacob, and sally went rock climbing. they started at 25 meters above sea level.
caleb ascended 39 meters and then descended 20 meters. caleb’s position, in meters, compared to sea level can be found using the expression ______.
jacob descended 2 meters and then ascended 32 meters. jacob’s position, in meters, compared to sea level can be found using the expression ______.
sally descended 14 meters and then descended 5 meters. sally’s position, in meters, compared to sea level can be found using the expression ______.
what expression shows each climber’s final elevation?
drag the correct expression to complete each statement. click or tap the reset button to start over.
-2 + 32 -14 + (-5)
25 + 39 + (-20) 25 + (-39) + 20
25 + 2 + (-32) 25 + (-2) + 32
25 + 14 + 5 39 + (-20)
25 + (-14) + (-5)

Explanation:

Caleb's Expression:

Step1: Initial position

Start at 25 meters: \( 25 \)

Step2: Ascend 39 meters

Ascend is positive: \( +39 \)

Step3: Descend 20 meters

Descend is negative: \( +(-20) \)

Step4: Combine

Expression: \( 25 + 39 + (-20) \)

Step1: Initial position

Start at 25 meters: \( 25 \)

Step2: Descend 2 meters

Descend is negative: \( +(-2) \)

Step3: Ascend 32 meters

Ascend is positive: \( +32 \)

Step4: Combine

Expression: \( 25 + (-2) + 32 \)

Step1: Initial position

Start at 25 meters: \( 25 \)

Step2: Descend 14 meters

Descend is negative: \( +(-14) \)

Step3: Descend 5 meters

Descend is negative: \( +(-5) \)

Step4: Combine

Expression: \( 25 + (-14) + (-5) \)

Answer:

\( 25 + 39 + (-20) \)

Jacob's Expression: