Sukienka kosztuje 39.99 = 40,00
Ile będzie kosztowała po rabacie 5% ?
Ile będzie kosztowała po rabacie 10% ?
Oblicz.
= znak przyblizenia.
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40 - 100%
x- 5%
x=200/100%=2
po rabacie 5%
40-2=38
Po rabacie 10%
40-4=36