The sum of two integers is 10. Their difference is 4.
What are the two integers?

answer = 7&3

step by step solution

let's take X and Y two intigers

X+Y=10

X-Y=4

adding both equation

X=7

Y=3

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

nope.   happens to me as well.

-aparri