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Percentual na prática, uso dos decimais.
Em uma prova com 49 questões, quantas questões tem que estar certas para atingir 70%???
Já procurei no google mas não consegui achar nenhuma resposta, pois necessito de uma resposta de uma professor, preciso desta resposta o mais rápido possível.
Quero saber se um professor, ao corrigir uma prova, onde o aluno tem que acertar 70% da prova e o aluno acertou 34 questões, quero saber se o aluno atingiu os70%.
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Answer #
Ainda tem duvida sobre Percentual na prática, uso dos decimais., entao utilize o campo de respostas dessa mesma pergunta para contra argumentar novas explicacoes.Answer this Question
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Answer #1
Temos que 70%=70/100=0,7.
Logo 70% de 49 é
0,7*49=34,3.
Como 34