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11111nata11111 [884]
3 years ago
8

Christian is categorizing each fraction shown as either a terminating decimal or a repeating decimal. Sort each fraction into th

e correct category. 54/5, 2 14/15, 20 1/12, 71/4, 33/2, and \16 5/8
Mathematics
1 answer:
FinnZ [79.3K]3 years ago
4 0
Greatest to Least 71/4 20, 16, 2.14/15, 5/8, 
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Jim has only dimes and nickels in his coin bank. He has 37 coins with a total value of $2.65.
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Answer:

21

Step-by-step explanation:

Let x represent the number of dimes and y represent the number of nickels.  The total number of coins is 37; this gives us the equation

x+y = 37

Each dime is worth ten cents, or 0.10, and each nickel is worth five cents, or 0.05.  The total amount of money is given by

0.10x+0.05y = 2.65

This gives us the system

\left \{ {{x+y=37} \atop {0.10x+0.05y=2.65}} \right.

To solve this, we will use substitution.  We will isolate x in the first equation:

x+y=37

Subtract y from each side:

x+y-y = 37-y

x = 37-y

Substitute this into the second equation:

0.10(37-y)+0.05y = 2.65

Using the distributive property,

0.10(37)-0.10(y)+0.05y = 2.65

3.70-0.10y+0.05y = 2.65

Combining like terms,

3.70-0.05y = 2.65

Subtract 3.70 from each side,

3.70-0.05y-3.70 = 2.65-3.70

-0.05y = -1.05

Divide both sides by -0.05:

-0.05y/-0.05 = -1.05/-0.05

y = 21

There were 21 nickels.

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Use photo-math or Gauth-math application can help u this
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4. If you have earned income, which of the following retirement devices must you contribute to, by law?
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Social security. (FICA)
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The data to represent average test scores for a class of 16 students includes an outlier value of 78. If the mean, including the
monitta

Answer:

Given that The data to represent average test scores for a class of 16 students includes an outlier value of 78.

We can find sum of all 16 test scores = 84(16) = 1344

Outlier found = 78

If outlier is removed new sum = 1344-78 = 1266

Number of entries without outlier = 15

New average = 1266/12 =84.4

We find that average of new data increases.

Also whenever we remove outlier std deviation also would be reduced.

Step-by-step explanation:

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Which function represents the exponential function f(x) = 3x after a vertical stretch by a factor of 8 and a reflection across t
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The answer should be letter A I believe correct me if I’m wrong.
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