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Viktor [21]
3 years ago
11

Taliyah has 174 coins in her collection of dimes and nickels. The total value of the collection is $15.20. How many dimes does s

he have in her collection?
Mathematics
1 answer:
Gala2k [10]3 years ago
3 0

Answer:

130 dimes

Step-by-step explanation:

A nickel is worth 5 cents = 0.05n

A dime is worth 10 cents = 0.10d

Taliyah has 174 coins in her collection of dimes and nickels.

n + d = 174

n = 174 - d

The total value of the collection is $15.20.

0.05n + 0.10d = $15.20

We substitute 174 - d for n

Hence:

0.05(174 - d) + 0.10d = 15.20

8.7 - 0.05d + 0.10d = 15.20

- 0.05d + 0.10d = 15.20 - 8.7

0.05d = 6.5

d = 65/0.05

d = 130 dimes

The number of dimes she has in her collection is 130 dimes

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Answer:

probability of randomly selecting an employee who is female and under the age of 25= 0.15

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