Dintr-un siloz plin cu porumb s-a vândut în prima lună o cincime din cantitate. A doua lună s-a vândut un sfert din rest s, i au rămas 3360 kg de porumb. Câte kilograme au fost la început?

Total volume = 5,600 kg

Step-by-step explanation:

Given:

Volume of corn remain = 3,360 Kg

Assume;

Total volume = x

Volume sold in 1st month = x/5

Volume sold in 2nd month = [x-x/5][1/4] = x/5

So,

Volume sold in 1st month + Volume sold in 2nd month + Volume of corn remain = Total volume

x/5 + x/5 + 3360 = x

3x = 16,800

x = 5,600 kg

Total volume = 5,600 kg

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

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x