[tex]\frac{4}{5} =\frac{8}{10} =0,8[/tex]
I sklep
[tex]\frac{4}{5} \ \text{kg} = 25,38 \ \text{PLN}[/tex]
II sklep
[tex]1 \ \text{kg} = 27,90 \ \text{PLN} \\ \\ 1 \ \text{kg} \ \ \ --- \ \ \ 27,90 \ \text{PLN} \\ \frac{4}{5} \ \text{kg} \ \ \ --- \ \ \ \ \ x \ \ \ \ \text{PLN} \\ ================ \\ x=(0,8*27,90):1 = 22,32[/tex]
Ile zaoszczędziłby Paweł?
[tex]25,38-22,32=3,06[/tex]
Paweł zaoszczędziłby 3,06 zł.
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[tex]\frac{4}{5} =\frac{8}{10} =0,8[/tex]
I sklep
[tex]\frac{4}{5} \ \text{kg} = 25,38 \ \text{PLN}[/tex]
II sklep
[tex]1 \ \text{kg} = 27,90 \ \text{PLN} \\ \\ 1 \ \text{kg} \ \ \ --- \ \ \ 27,90 \ \text{PLN} \\ \frac{4}{5} \ \text{kg} \ \ \ --- \ \ \ \ \ x \ \ \ \ \text{PLN} \\ ================ \\ x=(0,8*27,90):1 = 22,32[/tex]
Ile zaoszczędziłby Paweł?
[tex]25,38-22,32=3,06[/tex]
Paweł zaoszczędziłby 3,06 zł.