Question
A diver is 15 feet below sea level. The diver then swims up 15 feet to the surface. Which expression shows the correct sum?(1 point)
Responses
(−15)+15=30
negative 15 plus 15 is equal to 30 - incorrect
(−15)+15=0
negative 15 plus 15 is equal to 0 - no response given
(−15)+(−15)=0
negative 15 plus negative 15 is equal to 0 - no response given
(−15)+(−15)=−30
Responses
(−15)+15=30
negative 15 plus 15 is equal to 30 - incorrect
(−15)+15=0
negative 15 plus 15 is equal to 0 - no response given
(−15)+(−15)=0
negative 15 plus negative 15 is equal to 0 - no response given
(−15)+(−15)=−30
Answers
GPT-4o mini
The correct expression to represent the diver's movement from 15 feet below sea level to the surface is:
\[
(-15) + 15 = 0
\]
This means that starting at -15 feet (15 feet below sea level) and swimming up 15 feet brings the diver to 0 feet (at sea level). Thus, the total sum is 0.
\[
(-15) + 15 = 0
\]
This means that starting at -15 feet (15 feet below sea level) and swimming up 15 feet brings the diver to 0 feet (at sea level). Thus, the total sum is 0.