Problem

DOM SEG TER QUA QUI SEX SÁB (U)
071051
Cálcule aplicado
Quessere o1)
Uma aitisa gamban 20 minuies pora percoserer 4 Quilomires. Otempo ele ycusterá, mantende $\&$ mesme sitimopara porceorra 16 guilometora e iygeal a:
$20,9=80$ 80 mimnios
\[
9 \times 9=16
\]
Qubsure o2)
austre 03 )
Ccrleco
$\frac{200}{7} \Rightarrow$ bse selar rãe es $\frac{2}{7}$ da caita.
\[
\begin{array}{l}
7100 \%-\frac{200 \%}{7} \Rightarrow 100.7-\frac{200}{7} \cdot 7 \\
700-200 \quad 5 \% \\
50 \% \cdot \frac{11 \phi \phi}{5} \\
\end{array}
\]

Answer

Expert–verified
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Answer

\(\boxed{8}\)

Steps

Step 1 :\(20\% = \frac{1}{5}\) and \(50\% = \frac{1}{2}\)

Step 2 :Calculate \(80\frac{1}{2}\frac{1}{5}\)

Step 3 :\(=\frac{80}{10}\)

Step 4 :\(\boxed{8}\)

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