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AleksAgata [21]
3 years ago
10

Over the past several months,the water level of a lake has been decreasing by 12% each week.If the highest water level before th

e decrease started was 520ft.What was the level at the end of 2 weeks?
Mathematics
1 answer:
pickupchik [31]3 years ago
8 0

Answer:

The level was 402.7ft. at the end of two weeks.

Step-by-step explanation:

First, we need to find the amount of decrease for the first week.

520 x 0.12 = 62.4

Now, we subtract the change for the first week.

520 - 62.4 = 457.6

Next, we find the change for the second week.

457.6 x 0.12 = 54.912

Then, we subtract the change for the second week.

457.6 - 54.912 = 402.688

And we are left with our final answer that is 402.688ft. or if you wish to round to the nearest tenth, then your answer would be 402.7ft.

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The Total surface area of the rectangular prism = 168 in.²

The Volume of the rectangular prism = 108 in.³

<h3>What is the Total Surface Area of a Rectangular Prism?</h3>

The total surface area of a rectangular prism is given as: SA = 2(wl + hl + hw), where:

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h = height of the rectangular prism

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<h3>What is the Volume of a Rectangular Prism?</h3>

The volume of a rectangular prism = l × w × h

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