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masya89 [10]
3 years ago
13

Rosalina just started a new job. She has $500 in her bank account. Every week, she deposits $40 into her bank account. Write an

expression to represent how much Rosalina has in her account at any given time using x to represent the number of weeks. please help!!!​
Mathematics
2 answers:
Mrrafil [7]3 years ago
8 0

Answer:

10.14 years

Step-by-step explanation:

The following equation describes the percentage of all eligible voters that are registered to vote as a function of time:

V=100-30e^{-0.04t}

The time 't' for which V(t) = 80 is the amount of years required for the percentage of registered voters to reach 80%:

80=100-30e^{-0.04t}\\\frac{20}{30}= e^{-0.04t}\\ln(\frac{2}{3})=-0.04t*ln(e)\\ t=10.14\ years

It will take 10.14 years until 80% of all eligible voters in your county are registered to vote

tia_tia [17]3 years ago
3 0

Answer: (40x)+500

Step-by-step explanation:

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