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 negative 15 is equal to negative 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
negative 15 plus 15 is equal to 30 - no response given
Responses
(−15)+(−15)=−30
negative 15 plus negative 15 is equal to negative 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
negative 15 plus 15 is equal to 30 - no response given
Answers
GPT-4o mini
To determine the correct expression for the situation described:
1. The diver starts at 15 feet below sea level, which is represented as -15 feet.
2. The diver swims up 15 feet to reach the surface, which is represented as +15 feet.
Thus, the correct expression to represent the situation is:
\[
(-15) + 15 = 0
\]
This means that starting at -15 feet and swimming up 15 feet brings the diver back to sea level (0 feet).
So the correct response is:
**(−15) + 15 = 0**
1. The diver starts at 15 feet below sea level, which is represented as -15 feet.
2. The diver swims up 15 feet to reach the surface, which is represented as +15 feet.
Thus, the correct expression to represent the situation is:
\[
(-15) + 15 = 0
\]
This means that starting at -15 feet and swimming up 15 feet brings the diver back to sea level (0 feet).
So the correct response is:
**(−15) + 15 = 0**