Question

I will give a medal!!!<3

A fuel is purified by passing it through a clay pipe. Each foot of the clay pipe removes a fixed percentage of impurities in the fuel. Let f(x) represent the amount of pollutants, in tons, left in the fuel after it had passed through x feet of the clay pipe.

f(x) = 10(0.8)x

What does the number 0.8 represent?

Every foot of the pipe removes 20% of the pollutant.

Every foot of the pipe removes 80% of the pollutant.

The original amount of pollutant present in the fuel was 80 tons.

The original amount of pollutant present in the fuel was 20 tons.

Answer 1

@agent0smith

Answer 2

After every foot, 0.8 or 80% of the pollutants will remain, so how much was removed?

Answer 3

20%

Answer 4

So it's A?

Answer 5

I'll take that as a yes. Thanks :)