There are 800,000 termites in a wooden porch. The treatment used on the wood exterminates 40% of the termites every day. How many termites will be left in: a) 3 days
b)36 hours
c) 2 weeks

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