In planning her retirement, Liza deposits some money at 3% interest, with twice as much deposited at 4.5%. Find the amount deposited at each rate if the total annual interest income is $2400.

Step-by-step explanation:

.03x + .045(2x) = $2040

        .12x = $2040  

           x = $17,000 at 3%  and $34,000 at 4.5%  

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

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