SOLUTION: QUESTION: Conor is scuba diving at a depth of 52.8 feet below sea level. 30 mins later, he is at a depth of 40 feet below sea level. What is his change in depth? Did he go up or do

Question 14477: QUESTION: Conor is scuba diving at a depth of 52.8 feet below sea level. 30 mins later, he is at a depth of 40 feet below sea level. What is his change in depth? Did he go up or down?
PLEASE HELP
Answer by elima(1433) (Show Source): You can put this solution on YOUR website!
x=sea level
x+40=52.8
x=52.8-40
x=12.8
So the change would be 12.8, and he went up.
You have to think of a number line, the sea level is 0, and on a number line is -52.8 further away from 0 than -40? yes
So he got closer to 0, which means he went up
=)
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