Question

77. Copie e complete usando os tres processos estudados a_ 55%de_____=11 b_ 90% de RS ___ = RS135,00 C_ 120% de___= 3

Answer 1

a) 55%de_____=11
$\dfrac{55 \%}{100\%} \cdot x = 11 \\ \\ \dfrac{55}{100} \cdot x = 11 \\ \\ 0,55\cdot x = 11 \\ \\ x= \dfrac{11}{0,55} \\ \\ x=20$

b) 90% de R$ ___ = R$135,00
$\dfrac{90 \%}{100\%} \cdot y = 135 \\ \\ \dfrac{90}{100} \cdot y = 135 \\ \\ 0,90\cdot y = 135 \\ \\ y= \dfrac{135}{0,90} \\ \\ y=150$

c)120% de___= 3
$\dfrac{120 \%}{100\%} \cdot z = 3 \\ \\ \dfrac{120}{100} \cdot z = 3 \\ \\ 1,20\cdot z = 3 \\ \\ z= \dfrac{3}{1,20} \\ \\ z=2,5$



Bons estudos!