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chloerodgers56
26.07.2019 •
Mathematics
Ao incidir sobre determinado capital um acrescimo 15% e, em seguida, sobre o valor obtido um desconto tambem 15% é correto afirmar que o valor do capital volta ao valor original? justifique
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Ответ:
100% = 1. Adding 15% of the value, we would have
1+(0.15)(1) = 1+0.15= 1.15, or 115%.
Taking a 15% discount of this, we would have
1.15 - 0.15(1.15) = 1.15-0.1725 = 0.9775 = 97.75%
Ответ:
Answer D : All real numbers
Step-by-step explanation:
Notice that all real numbers are covered in the Domain of the piece-wise function:
That covers the entire Real number line.