Jenny is 9 years younger than Sammie. Five years ago Sammie was 4 times older than Jennie. How old is each now?
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Respuesta :

Jenny is 8 years old and Sammie 17 is years old.

Given that:

  • Jenny is 9 years younger than Sammie.
  • Five years ago, Sammie was 4 times older than Jennie.

To find:

Current age of Jennie and Sammie

Calculation and Explanation.

Let the current age of Jennie be x.

Let the current age of Sammie be y.

Then from given data we have:

[tex]x = y-9\\4(x-5) = (y-5)[/tex]

We'll substitute value of x from equation 1 in equation 2:

[tex]4(y-9-5) = (y-5)\\3y = 51\\y=17[/tex]

Thus, from equation 1 and y = 17, we have:

[tex]x=y-9\\x=17-9\\x=8[/tex]

Thus, Jenny is 8 years old and Sammie 17 is years old.

Learn more about age difference related posts here:

https://brainly.com/question/4159273

Answer:

Jenny is 8 years old and Sammie 17 is years old.

Notes:

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