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adelina 88 [10]
3 years ago
9

Tia is 8 years younger than her sister Annette. Annette is y years old. Write an algebraic expression that describes Tia’s age.

Mathematics
2 answers:
-BARSIC- [3]3 years ago
6 0
8-y
Hope this helps and please mark brainliest.
aleksley [76]3 years ago
6 0
Y= x + 8

Tia= x

How I think about it is this:

Annette= Tia + 8 years

The trick is to try to plug the words in order to make an equation.
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This can be found by using the present value of an annuity formula because the annual payment will be constant and therefore like an annuity.

Formula is:

Present value of annuity = Annual payment x ( 1 - (1 + rate) ^ -number of periods) / rate

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