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podryga
[215]
3 years ago
15
Janet is three years older than her little sister Julie. Janet's brother is eight years younger their their sister Julie. The su
m of all of their ages is 55 years. ***Linear equation***
Mathematics
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2
answers:
Lelechka
[254]
3 years ago
7
0
Let Julie’s age be x years, then Janet=x+3, brother=x-8.
x+x+3+x-8=55, 3x-5=55, 3x=60, x=20.
The ages are Julie is 20, Janet is 23 and their brother is 12.
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Mandarinka
[93]
3 years ago
6
0
I'm sorry I need more details, please
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