Answer:
The error that Adam could have made is added 45 to the depth of
submarine instead of adding -45
Explanation:
* Lets explain how to solve the problem
- A submarine traveling 200 meters below the surface of the ocean
- Increases its depth by 45 meters
- Adam says that the new location of the submarine is -155 meters
- We need to know the error of Adam
∵ We consider the surface of the ocean is the zero level
∵ The submarine is 200 meters below the surface of the ocean
∵ Below means negative
∴ The depth of submarine is -200 meters
∵ It increases the depth by 45 meters
- That means it travels down another 45 meters
∵ Down means negative
∴ The depth of submarine = -200 + (-45) = -245 meters
∴ The depth of submarine is 245 below the surface of the ocean
- Adam could thought that the submarine traveled up for 45 meters
then he add 45 to -200
∵ -200 + 45 = -155 meters
∴ The error that Adam could have made is added 45 to the
depth of submarine instead of adding -45