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erastovalidia [21]
3 years ago
13

How to add a mixed numbers​

Mathematics
1 answer:
Rasek [7]3 years ago
8 0

Answer:

To add mixed numbers, we first add the whole numbers together, and then the fractions. ...

If the denominators of the fractions are different, then first find equivalent fractions with a common denominator before adding. ...

Subtracting mixed numbers is very similar to adding them.

Step-by-step explanation:

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Use logarithms to solve the equation for t. (Round your answer to two decimal places.)
mezya [45]

9514 1404 393

Answer:

  2.56

Step-by-step explanation:

Multiply by (1+6e^(-.7t))/1000:

  2000/1000 = 1 +6e^(-0.07t)

  1 = 6e^(-0.07t) . . . . . . . . . subtract 1

  e^(0.07t) = 6 . . . . . . . . . . multiply by e^(0.07t)

  0.07t = ln(6) . . . . . . . . . take the natural log

  t = ln(6)/0.07 . . . . . . . divide by the coefficient of t

  t ≈ 2.55966 ≈ 2.56

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3 years ago
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hodyreva [135]

Answer:

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Step-by-step explanation:

The system started at -12.6 Celsius. It then cooled 7.5 degrees during a reaction. Because it cooled, that means the difference is negative.

-12.6 degrees Celsius - 7.5 degrees Celsius = -20.1 degrees Celsius

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7 0
4 years ago
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Oksi-84 [34.3K]

Answer:

9x/4= -9

Mutiply by 4 for both sides.

4(9x/4) cross out 4 and 4, divide by 4 and then becomes 9x. (-9)(4)= -36

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9x/9= -36/9

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5 0
3 years ago
One meter of electrical cord costs 3 dollars. How much should one pay for 4 meters?
Ivanshal [37]

Answer:

$12

Step-by-step explanation:

1meter= $3

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=$12

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Step-by-step explanation:

Hope this helps u !!

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