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3 years ago

62 is 90.5% of what number

Mathematics

2 answers:

kati45 [8]3 years ago

6 0

$\frac{90,5*x}{100} =62 =\ \textgreater \ x= \frac{100*62}{90,5} =\frac{1000*62 }{905}= \frac{200*62}{181} = \frac{12400}{181}$
Hope that helps.Have a nice day!! ^^

OleMash [197]3 years ago

4 0

$\text{{The answer is x=68.50}}}$

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liraira [26]

Answer:

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Step-by-step explanation:

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While the probability of event G (selecting a girl) is

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We are asked to find the probability that the first two events are B and then G:

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In the first two selections, we have 4 possible combinations:

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The probability for each combination is given by:

$P(BB)=P(B)\cdot P(B) = \frac{3}{8}\cdot \frac{3}{8}=\frac{9}{64}=14.1 \%$

$P(BG)=P(B)\cdot P(G) = \frac{3}{8}\cdot \frac{5}{8}=\frac{15}{64}=23.4 \%$

$P(GB)=P(G)\cdot P(B) = \frac{5}{8}\cdot \frac{3}{8}=\frac{15}{64}=23.4 \%$

$P(GG)=P(G)\cdot P(G) = \frac{5}{8}\cdot \frac{5}{8}=\frac{25}{64}=39.1 \%$

The second one is the probability we are searching for, so the probability that she will select a boy first and then a girl is 15/64, or 23.4%.

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