Question

Another submarine’s descent can be represented as y=−240x, where y is the elevation and x is time in hours. How long will it take this submarine to make a descent of 2400 feet below the surface?

Answer 1

Answer:

the answer will be= 9hour 15minutes

Step-by-step explanation:

》y=2100

》y=240x gives

》-2100=-240x

》x= -2100÷ -240

》 x= 8.75

So, the required time is =9hours and 15minutes