Question

Qual o valor da expressão? 4 × (0,2)² ------------ 1 - 0,2

Answer 1

Explicação passo-a-passo:

$A=\dfrac{4\times(0,2)^2}{1-0,2}$

$A=\dfrac{4\times0,04}{0,8}$

$A=\dfrac{0,16}{0,8}$

$A=\dfrac{16}{80}$

$A=\dfrac{1}{5}$

$A=0,2$

Answer 2

$\mathsf{\dfrac{4\times(0,2)^2}{1-0,2}}\\\mathsf{\dfrac{4\times0,04}{0,8}}\\\mathsf{\dfrac{0,16\times100}{0,8\times100}}\\\mathsf{\dfrac{16\div16}{80\div16}}\\\huge\boxed {\boxed{\boxed{\boxed{\mathsf{\dfrac{1}{5}=0,2}}}}}$