[tex] \frac{40 \times100 }{160} = \frac{4000}{160} = 25\%[/tex]
[tex] \frac{20 \times 100}{80} = \frac{2000}{80} = 25\%[/tex]
[tex] \frac{620 \times 70}{100} = \frac{43 \: 400}{100} = 434[/tex]
[tex] \frac{22 \times 100}{20} = \frac{2200}{20} = 110[/tex]
en todos se aplica una regla de tres
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1)
[tex] \frac{40 \times100 }{160} = \frac{4000}{160} = 25\%[/tex]
2)
[tex] \frac{20 \times 100}{80} = \frac{2000}{80} = 25\%[/tex]
3)
[tex] \frac{620 \times 70}{100} = \frac{43 \: 400}{100} = 434[/tex]
4)
[tex] \frac{22 \times 100}{20} = \frac{2200}{20} = 110[/tex]
en todos se aplica una regla de tres