Question

calcule a) 3% de 150 b) 10% de 120. c) 20% de 90

Answer 1

Olá!

$\\ { \large \displaystyle \sf {a) \: 3\% \: \: de \: \: 150 = }}$

${ \large \displaystyle \sf { \frac{3}{100} \cdot150 = }}$

${ \large \displaystyle \sf { 0,03 \cdot150 = }}$

$\boxed{ \boxed{ \pink{ { \large \displaystyle \sf { \: 4,5 \: }}}}}$

${ \large \displaystyle \sf {b) \: 10\% \: \: de \: \: 120 = }}$

${ \large \displaystyle \sf { \frac{10}{100} \cdot120 = }}$

${ \large \displaystyle \sf { 0,1 \cdot120 = }}$

$\boxed{ \boxed{ \pink{ { \large \displaystyle \sf { \: 12 \: }}}}}$

${ \large \displaystyle \sf {c) \: 20\% \: \: de \: \: 90 = }}$

${ \large \displaystyle \sf { \frac{20}{100} \cdot90 = }}$

${ \large \displaystyle \sf { 0,2 \cdot90 = }}$

$\boxed{ \boxed{ \pink{ { \large \displaystyle \sf { \: 18 \: }}}}}$