I am prepping for a mid-term. A deep sea diving bell is lowered at a rate (constant). After 10 min, the bell is at a depth of 300 ft. After 30 min the bell is at a depth of 1400 feet. What is the ave. rate of lowering per minute?

Question

I am prepping for a mid-term.  A deep sea diving bell is lowered at a rate (constant).  After 10 min, the bell is at a depth of 300 ft.  After 30 min the bell is at a depth of 1400 feet.  What is the ave. rate of lowering per minute?

Thanks

Scott · Answer

the average is ... total depth / total time it went slower in the beginning