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blsea [12.9K]
3 years ago
12

Kaylee has $0.90 worth of nickels and dimes. She has a total of 14 nickels and dimes altogether. By following the steps below, d

etermine the number of nickels, x,x, and the number of dimes, y,y, that Kaylee has.
Determine three ways to have a total of 14 coins:
Mathematics
1 answer:
vladimir1956 [14]3 years ago
4 0

Answer:

10

Step-by-step explanation:

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9x - 7 + 8.5x + 4 = 180
17.5x - 3 = 180
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x = 10.5
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84 is 30% of what number?<br> 2.8<br> 25.2<br> 280<br> 2520
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3 years ago
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What is the value of P?
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Answer:

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the opposite exterior angle)

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Suppose that a simulation with a six-sided number cube provided these results during testing.
lyudmila [28]
Theoretical probability:
1 ... (16 and 2/3) %
2 ... (16 and 2/3) %
3 ... (16 and 2/3) %
4 ... (16 and 2/3) %
5 ... (16 and 2/3) %
6 ... (16 and 2/3) %

Experimental results:
1 ... 18
2 ... 16
3 ... 16
4 ... 17
5 ... 16
6 ... 17

The total number of rolls in the experiment was

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so the expected frequency for each outcome was 16-2/3 times,
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6 ... 17%

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could hardly be more fair than it actually is.










8 0
3 years ago
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