Question

a)30% de 1500b)12%de120

Answer 1

Resolução, veja:

Letra “A”:

Determinar 30% de 1500:

$\mathsf{30\%~\textsf{de}~1500 = \dfrac{30}{100}~\cdot~1500}}}\\\\\\\\\ \mathsf{30\%~\textsf{de}~1500 = 0,3~\cdot~1500}}\\\\\\\\ \large\boxed{\boxed{\boxed{\boxed{\boxed{\mathsf{30\%~\textsf{de}~1500 =450.}}}}}}}}}}}}}}}}}}}}$

Ou seja, 30% de 1500 equivale a 450.

Letra “B”:

Determinar 12% de 120:

$\mathsf{12\%~\textsf{de}~120 = \dfrac{12}{100}~\cdot~120}}}\\\\\\\\\ \mathsf{12\%~\textsf{de}~120 = 0,12~\cdot~120}}\\\\\\\\ \large\boxed{\boxed{\boxed{\boxed{\boxed{\mathsf{12\%~\textsf{de}~120 = 14,4.}}}}}}}}}}}}}}}}}}}$

Ou seja, 12% de 120 equivale a 14,4.

Espero que te ajude '-'