Rafael ganhou do seu pai todas essas moedas para colocar no seu cofre:
• 6 moedas de 1 real;
• 4 moedas de cinquenta centavos;
• 4 moedas de vinte e cinco centavos;
• 3 moedas de dez centavos.
Quanto Rafael ganhou ao todo?
Questões relacionadas
- Língua Inglesa | 1.4 Reading Strategies
What’s in a name? The trouble with lingo
Remember the campaign in New York for garbage collectors to be called sanitation engineers?
Near the top of the strike’s agenda was the matter of getting the respect due to the people doing
such essential work. Unfortunately, the new euphemistic title clarified nothing about the work
and by now is either simply not heard for what it means, or is used in moments of gentle disdain.
[5] A clearer term may have both generated the respect desired and withstood the test of time.
Clarity and sincerity matter. Terms which mislead, confuse or cause offence can become
a distraction from the real content of public debate. In the search for consensus, since public
understanding is harder to change than terminology, changing the terminology might be a better
place to start. No additional prejudice or emotion should be brought to a debate by the terminology
[10] used in it. Here are two examples.
Genetic Engineering and Genetic Modification
Despite the insistence of biotech scientists that genes of completely different species are no
longer being mixed, the message isn’t being heard. They insist that they are now involved only
in developments which simply hasten the natural processes of selective and cross breeding or
[15] cross pollination. As farmers and horticulturists have been doing exactly this, unquestioned, for
years, they cannot understand public resistance.
The problem may well be the terminology. In this context, the words “scientific” or “genetic” have
been irreparably sullied. If “genetic engineering” has, in the public’s view, become synonymous
with the indiscriminate mixing of genes, and if the softer label “genetically modified” hasn’t been
[20] able to shake off a perception of sinister overtones, these terms might as well be dropped − or
left attached only to experiments in Dr. Frankenstein’s laboratory.
Ideally, a new agricultural term would leave out the word “genetic” altogether: it seems to
frighten the public. Assuming it described science’s benign genetic activities accurately, the term
“productivity breeding” is not a trivial call for a euphemism; besides, it would probably encounter
[25] less public opposition.
So, let’s have new terms for selective cross breeding by scientists who simply speed up the same
process that is carried out in nature.
Clean coal*
If this new term was intended to be clear, it hasn’t worked.
[30] In “Politics and the English Language” (1946), George Orwell wrote that because so much political
speech involves defending the indefensible, it has to consist largely of euphemism. He insisted
that, in politics, these euphemisms are “swindles” and “perversions” left deliberately vague in
order to mislead. Deliberate or not, “clean coal” is one of these. Aside from being a contradiction
in terms, the name is misleading, creating the impression of the existence of a new type of coal. In
[35] fact, it is ordinary coal which has been treated to “eliminate” most of its destructive by-products,
which are then buried. The whole process produces emissions. This, though, isn’t clear when it
is simply labelled “clean coal”. The term just doesn’t seem sincere. It’s a red rag to any green.
It’s not asking too much to expect the term describing these procedures to be more accurate. A
clearer term would be less provocative.
[40] So, what’s in a name? A lot. There’s the possibility of confusion, prejudice, perversions and
swindles. For the sake of fair debate, let’s mean what we say and say what we mean.
SEEARGH MACAULAY www.londongrip.com
According to the text, the use of the expression “clean coal” might infuriate ecologists.
This idea is explicit in:
- Geografia - Fundamental | 03. O Brasil e suas diferenças sociais
Analise a imagem a seguir que representa duas regiões da cidade de São Paulo.
A partir da análise da imagem, pode-se afirmar que o Brasil é um país
- Matemática | 10. Estatística
(ENEM 2017 LIBRAS)
Passar trote nos telefones de emergência da Polícia Militar, Corpo de Bombeiros e Serviço de Atendimento Móvel de Urgência (Samu) pode resultar em multa para o dono do telefone de onde partiu a ligação. Para exemplificar a seriedade dessa questão, em uma cidade brasileira, um jornal local publicou a tabela a seguir, mostrando o número de trotes telefônicos recebidos pelos bombeiros da cidade, ao longo de um semestre.Qual o valor mediano da quantidade de trotes recebidos nesse semestre?
- Matemática | 1.07 Porcentagem e Juros
João e Felipe participaram, na escola, de uma maratona de matemática na qual, durante uma semana, resolveram 200 questões cada. Nessa maratona, a porcentagem P de acertos de cada participante é convertida em um conceito:
• insatisfatório: se 0 ≤ P < 50;
• regular: se 50 ≤ P < 60;
• bom: se 60 ≤ P < 75;
• muito bom: se 75 ≤ P < 90;
• excelente: se 90 ≤ P ≤ 100.
João acertou 75% das questões da maratona e Felipe acertou 30% a menos que a quantidade de questões que João acertou.
Os conceitos de João e Felipe foram, respectivamente,
- História - Fundamental | 05.3. Registros da história: a nossa cultura
Que atividade econômica foi desenvolvida no litoral do Nordeste no início do século 16?