Aperson walks first at a constant speed of 6 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 4 m/s. what is her average speed over the entire trip?

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

c.)

step-by-step explanation: