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

your answer is 23/2 - 13.5

step-by-step explanation:

7/2 evaluates to

multiply x and 4.5

multiply x and 1

the x just gets copied along.

the answer is x

x

4.5*x evaluates to 4.5x

multiply 3 and 4.5x

multiply 1 and x

the x just gets copied along.

x

4.5*x*3 evaluates to 13.5x

7/2-4.5*x*3 evaluates to

  + 8 =

the answer is

7/2-4.5*x*3+8 evaluates to

9987

step-by-step explanation: