Odpowiedź:
[tex]18 \times 1.5\% = 27 \div 100 = 0.27[/tex]
[tex]15\% \times x = 6 \times 100\% \\ 15\%x = 600\% \\ x = 40[/tex]
1
2
[tex]5\%x = 12 \times 100\% \\ 5\%x = 1200\% \\ x = 240[/tex]
3
