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ann is 4 years older than Julie. 4 years ago, ann was twice as old as julie. find their present ages

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The present ages of Ann and Julie are 12 years and 8 years, respectively.

What are the current ages of Ann and Julie?

Let x, y be the current ages of Ann and Julie, whose features are synthetized in the following linear equations:

Ann is 4 years older than Julie

x = y + 4

x - y = 4                                (1)

4 years ago, Ann was twice as old as Julie

x - 4 = 2 · (y - 4)

x - 4 = 2 · y - 8

x - 2 · y = - 4                         (2)

Now we proceed to determine the ages of Ann and Julie by solving the system of linear equations: (x, y) = (12, 8)

The present ages of Ann and Julie are 12 years and 8 years, respectively.

To learn more on systems of linear equations: https://brainly.com/question/19549098

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