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DIA [1.3K]
4 years ago
8

The value of an uncirculated​ 'Mint State-65' 1950 Jefferson nickel minted in Denver is 4/3 the value a 1945 nickel minted in Ph

iladelphia in similar condition. Together the total value of the two coins is​ $49. What is the value of each​ coin?
Mathematics
1 answer:
marusya05 [52]4 years ago
3 0

Answer: The value of an uncirculated nickel minted in Philadelphia is $21. The value is $28 in Denver.

Step-by-step explanation:

This can be solved by deriving two expressions from the information in the question. These two expressions can be intersected and solved.

Let the value of an uncirculated nickel minted in Philadelphia be x.

Let the value or an uncirculated nickel minted in Denver be 4/3x.

x+4/3x = $49

7/3x = $49

x = $21

Therefore 4/3x = 4/3×$21 = $28.

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Step-by-step explanation:

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4 years ago
A new shopping mall records 120 total shoppers on their first day of business. Each day after that, the number of shoppers is 10
Marta_Voda [28]

Answer:

1138

Step-by-step explanation:

From the information given:

We can represent it perfectly in an exponential form:

m  = p(q)^x

where;

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here; r = rate in decimal = 10% = 0.1

Then q can now be = 1 + 0.1 = 1.1

Replacing it into the exponential form, we get:

m = 120(1.1)^x

where;

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Thus:

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m = 120(1.1)^x

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For the second day:

m = 120(1.1)^1

m = 132

For the third day:

m = 120(1.1)^2

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For the fourth day

m = 120(1.1)^3

m = 159.72

For the  fifth-day

m = 120(1.1)^4

m = 175.692

For the sixth-day

m = 120(1.1)^5

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For the seventh-day

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Thus; the total numbers of shoppers for the first 7 days is:

= 120+ 132 + 145.2 + 159.72 + 175.692+193.2612+212.58732

= 1138.46052

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