Afisherman is setting up a net 6 feet below the surface of the water. each foot of the water screens out 40% of the light coming from the surface. which of the following is the approximate percentage of light remaining after passing through 6 feet of water, to the nearest tenth of a percent? 0.4%
1.0%
4.7%
7.8%

Option C 4.7% is the answer.

Step-by-step explanation:

Firstly the question says that with each feet the sunlight screens out 40 % and the rest remains 60%.

After 1st feet sunlight remains 60%.

Now 40% of this again screens out. 0.40*60 = 24%

60-24 =36%

At next level, we will find 40 % of 36 and subtract it from 60.

0.40*36 = 14.4 , so remaining value is = 36-14.4 = 21.6%

Next level: 0.40*21.6 =  8.64 ; 21.6-8.64 = 12.96%

Next level : 0.40*12.96 = 5.154 ; 12.96-5.184 = 7.776%

Next level : 0.40*7.776 = 3.1104 ; 7.776-3.1104 = 4.665%

Hence, the answer is 4.665% ≈ 4.7%

addition

step-by-step explanation:

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