Ashark swims at a rate of 18 feet per second while chasing his prey and then slows down to a rate of 7 feet per second. the shark chases his prey for t seconds and then swims at the slower speed for s seconds, and covers a total distance of 1200 feet. if all traveling is done in the same direction, which equation best describes this information? a) 1200 (t+s)=25 b) 1200(25)=t+s c) 1200= 18t+7s d) 1200= 25 (t+2)

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