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Liono4ka [1.6K]
3 years ago
11

Eleana and her grandfather both had birthdays last week.

Mathematics
2 answers:
disa [49]3 years ago
7 0

Answer:

25

Step-by-step explanation:

Degger [83]3 years ago
7 0

Answer:

Eleana is 20 years old and her grandfather is 80 years old.

Step-by-step explanation:

So first off, we want to make variables to represent Eleana and her grandfather.

Let x represent Eleana's age.

Since her grandfather is four times older than Eleana,

The expression should be 4x+x=100

Step One

Add the x's together and you get 5x=100.

Step Two

Divide both numbers by 5 to solve for x.

x=20

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