A trangle has has angles described as follows : the measure of the first angle is four more then seven times a number, the measure of the seacond angle is four less than the first, and the measure of the third angle is twice as large as the measure of the third as the first. what is the measure of each angle in degrees

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