The elevation of a small submarine changes by -38 mile after each exploration. After how many explorations will the submarine's
1 answer:
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Answer:
7.1 hours
Step-by-step explanation:
Given data
Let the number of hours taken to fill the pool be x
the current quantity is 1/2 the capacity of the pool
we are given that the rate of flow = 4.75 in per hour
let the total amount of water after x hours be y, the expression for the quantity of water is given as
if y= 33.75 in, let us find x
divide both sides by 4.75
Hence, it will take 7.1 hours