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?
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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
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