Question

Os numeros x e y sao tais que 80% de x e igual a 20% de y

Answer 1

Resposta:

Let's solve for x.

80

100

x=

20

100

y

Step 1: Divide both sides by 4/5.

4/5x/4/5=1/5y/4/5

x=y/4

Let's solve for y.

80/100x=20/100y

Step 1: Flip the equation.

1/5y=4/5x

Step 2: Divide both sides by 1/5.

1/5y/1/5=4/5x1/5

y=4x

Explicação passo a passo: