sergiovald12
sergiovald12 sergiovald12
  • 04-09-2019
  • Mathematics
contestada

After a 5% pay raise , Hermione is earning $21,000 per year. What was she earning before the pay raise?

Respuesta :

calculista
calculista calculista
  • 04-09-2019

Answer:

[tex]\$20,000[/tex]

Step-by-step explanation:

Let

x -----> Hermione was earning before the pay raise

we know that

[tex]100\%+5\%=105\%=105/100=1.05[/tex]

so

The linear equation that represent this problem is

[tex]1.05x=21,000[/tex]

Solve for x

Divide by 1.05 both sides

[tex]x=21,000/1.05[/tex]

[tex]x=\$20,000[/tex]

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