Question

em 12/11 matriculamos 54 alunos no dia seguinte o total de matriculados era 84.Quantos por cento teve de aumento?

Answer 1

Explicação passo a passo:

54 >>>>>>>>>>>>>>>>>>>>100

( 84 - 54) >>>>>>>>>>>>>> x

54 >>>>>>>>>>>>>>>>>>>> 100

30 >>>>>>>>>>>>>>>>>>>>> x

54/30 = 100/x

54 * x = 30 * 100

54x = 3 000

x = 3 000/54 =55,5% >>>>>resposta