The function c(f) = 5/9 (f-32) allows you to convert degrees to fahrenheit to degrees celsius. find the inverse of the function so that you can convert degrees celsius back to degrees fahrenheit

For this case we have the following function:

We must find the inverse function. For this we follow the steps below:

Replace c (f) with y:

We exchange variables:

f = \frac {5} {9} (y-32)

We solve for "y":

We multiply byon both sides of the equation:

We add 32 to both sides of the equation:

We change y by

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

tube or goog would be a great resource to with that question