a)
100% to 150
2% to x
[tex]x = \frac{2 \times 150}{100} = \frac{300}{100} = 3[/tex]
b)
100% to 200
40% to x
[tex]x = \frac{40 \times 200}{100} = \frac{8000}{100} = 80[/tex]
c)
100% to 120
x% to 180
[tex]x = \frac{180 \times 100}{120} = \frac{18000}{120} = 150[/tex]
150-100= 50%
d)
100% to 40
x% to 28
[tex]x = \frac{28 \times 100}{40} = \frac{2800}{40} = 70[/tex]
Pozdrowionka! ~Wika :3