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Alborosie
3 years ago
8

Laura is three times as old as Luci. In 5 years, the sum of their ages will be 30. What are the current ages of Laura and Luci?

Mathematics
1 answer:
Scrat [10]3 years ago
4 0

Answer:

Laura is 15 and Luci is 15.

Step-by-step explanation:

Now...

Laura - 3x

Luci - x

In 5 years...

Laura - 3x+5

Luci - x+5

The sum of that is...

4x+10=30

-10       -10

4x=20

4/4  20/4

x=5

If...

Laura - 5 than.....

Luci - 15 because 5*3 is 15

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