The formula d = 10 log (i/i0) can be used to understand how loud a sound is in decibels, given its intensity. Let loudness of a sound be d and i be the physical intensity. Suppose
the decibel level is 60. The physical intensity, i, is how many times that of i0?
A. 10,000,000 times
B. 1,000 times
C. 1,000,000 times
D. 100,000 times

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you

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step-by-step explanation: