A whale is swimming at 20 feet below sea level. He dives to a depth of 3,290 feet in 15 minutes. what is the change is depth per minute?

3,270/15 = ______ feet per minute

thanks I forgot to subtract the first 20. 218

:-) You are welcome.

To find the change in depth per minute, you need to divide the total change in depth by the time taken to cover that distance. In this case, the whale's total change in depth is from 20 feet below sea level to a depth of 3,290 feet, which is a change of 3,290 - (-20) = 3,310 feet.

Next, divide the total change in depth (3,310 feet) by the time taken (15 minutes):

Change in depth per minute = Total change in depth / Time taken
= 3,310 feet / 15 minutes

To calculate this, divide 3,310 by 15:

Change in depth per minute = 220.67 feet/minute (rounded to two decimal places)

Therefore, the change in depth per minute is approximately 220.67 feet.