Question

Ajutați-mă va rog frumos M mare nevoie in maxim 3 zile va rogggg

Answer 1

Răspuns:

ex 1

15/100×120=15/10×12=15/5×6=90/5=18

ex 2

20/100×x=45

x/5=45

x=45×5=225

ex 3

7÷25=0,28×100=28%

ex 4

x/100×125=75

125x/100=75

5x/4=75

5x=75×4=300

x=300÷5=60%

ex 5

20/100×800=16000/100=160 lei

800+160=960 lei dupa scumpire

20/100×960=960/5=192 lei

960-192=768 lei pret final