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user100 [1]
2 years ago
5

12(x-20)=-48 what is x

Mathematics
1 answer:
Sophie [7]2 years ago
3 0

Answer:

x = 16

Step-by-step explanation:

12(x - 20) = -48

Use distributive property

12*x - 12*20 = -48

12x - 240 = -48

Add 240 to both sides

12x = -48 + 240

12x = 192

Divide both sides by 12

x = 192/12

x = 16

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Write 27/40 as a decimal.
Alecsey [184]

Answer:

0.675

Step-by-step explanation:

27/40

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- Multiply each number by 25

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Convert that into a decimal. :)

4 0
2 years ago
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What is 0.2857142857 rounded to the nearest whole percent? pls help me​
Grace [21]

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6 0
2 years ago
The average age of instructors at a local college is 55, with a standard deviation of 6 years; the average salary is $37,000 wit
Lerok [7]
To solve for the coefficient of variation you will need this formula:
CV = (SD/X) x 100 
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             SD = Standard Deviation

To determine which one is more variable, just get the coefficient of both and compare.
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Based on the results, salary is more variable because 10.90<11.08.
8 0
3 years ago
Evaluate 6+ the sq root of 14+x minus - the sq root of 9x when x=2
romanna [79]
Hello 
let : f(x) = 6 + √(14+x) - <span>√(9x)
f(2) = </span>6 + √(14+2) - √(9×2)
f(2) = 6 + √(16)-√(18) 
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7 0
2 years ago
1.8.2
VLD [36.1K]

Answer:

5,

4.66

4

-0.97

-3/2

-20

3 0
2 years ago
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