Question

um investidor aplica 1.00,00 numa empresa a juros simples de 3% ao mes determine o valor apos um ano

Answer 1

C = 1.000
i = 3%a.m => 3/100 => 0,03
t = 1ano = 12 meses
J = ?

J = C * i * t
J = 1.000 * 0,03 * 12
J = 360

Juros de R$360,00

Answer 2

$\tt \large \boxed{\boxed{{\bullet \tt Juros \ Simples.}}}\\\\\\\sf M=1000\cdot \dfrac{3}{100}\cdot \:12+1000\\\\\\\sf M=1000\cdot \dfrac{3}{100}\cdot \:12=360\\\\\\\sf M=360+1000\\\\\\\boxed{\boxed{\sf M=1360}}$