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zmey [24]
3 years ago
6

Kelly is 8 years younger than her sister. The sum of her age is 44 years. How old is jelly and how old is her sister?

Mathematics
1 answer:
Vladimir [108]3 years ago
3 0

Answer:

Kelly: 4

Sister: 12

Step-by-step explanation:

x=kelly's age

y=sister's age

x+y=44

x=y-8

(y-8)+y=44

2y-8=44

2y=36

y=12

x=12-8

x=4

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Step-by-step explanation:

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NOTE: if it is a two-side test, the level of significance is 0.1 (two times 0.05).

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lorasvet [3.4K]

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Step-by-step explanation:

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