Question

ayudenme porfavor !!!!​

Answer 1

¡Hola!

Veremos las siguientes preguntas:

1.    $\frak{0.4666...=0.4\widehat{6}=\frac{46-4}{90}=\frac{42}{90}=\frac{7}{15} ..............Rpta\ B }$    

2.   $\frak{(36.50-28.40)n=162 \rightarrow n=\frac{162}{8.1}=20 \ ...........Rpta \ D }$

3.    $\frak{\sqrt{(0.7)^2-(0.06)^2(2)^2} }=\frak{\sqrt{(\frac{7}{10})^2- (\frac{6}{100})(4) }} = \frak{\sqrt{(\frac{49}{100})- (\frac{24}{100}) }}= \frak{\sqrt{(\frac{25}{100})}}=\frak{\frac{1}{2} }$

$\rightarrow \frak{2(\frac{1}{2})-1 =0 \ ............Rpta \ A}$

4.  $\frak{\frac{v}{m}=\frac{8\times n}{11\times n }}$

$\rightarrow \frak{v=8n=32 \rightarrow n=4}\\\rightarrow \frak{ m=4\times 11=44 \ .............Rpta\ B}$

5.  $\frak{800 \ pavos \rightarrow 15 \ dias}\\\frak{600 \ pavos \rightarrow x \ dias}$

$\rightarrow \frak{ x=\frac{600\times 15}{800}=11.25 \approx \ 11 \ dias \ .........Rpta \ B}$

¡Saludos!