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lara31 [8.8K]
2 years ago
11

Evaluate 2x for each value of x. Write your answers in simplest form. Show your work!

Mathematics
1 answer:
Liono4ka [1.6K]2 years ago
6 0

1. 1/2

2.2/3

3. 1

4. 1/3

5. 2/7

6. 1/4

7. 4/3

8. 3/2

<h3>How to evaluate the value</h3>

To find 2x of the vale of x, we have to multiply the value of 'x' by 2

1. x = 1/4

2x = 2 * \frac{1}{4} ⇒ \frac{2}{4} ⇒\frac{1}{2}

2. x = 1/3

2x = 2 * \frac{1}{3} ⇒\frac{2}{3}

3. x = 1/2

2x = 2* \frac{1}{2} ⇒ \frac{2}{2} ⇒ 1

4. x= 1/6

2x = 2* \frac{1}{6} ⇒ \frac{2}{6} ⇒ \frac{1}{3}

5. x = 1/ 7

2x = 2 * \frac{1}{7} ⇒ \frac{2}{7}

6. x = 1/8

2x = 2 * \frac{1}{8} ⇒ \frac{2}{8} ⇒ \frac{1}{4}

7. x = 2/3

2x = 2 * \frac{2}{3} ⇒ \frac{4}{3}

8. x = 3/4

2x = 2 * \frac{3}{4} ⇒ \frac{6}{4} ⇒ \frac{3}{2}

Learn more about algebraic expressions here:

brainly.com/question/723406

#SPJ1

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3/16

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You have 8,640 grams of a radioactive kind of cesium. If its half-life is 30 years, how much
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The mass of cesium left afer 120 years if the original mass of cesium is 8640 with an half-life of 30 years,  is 540 grams.

<h3>What is half-life?</h3>

This can be defined as the time taken for half the amount of a radioactive substance to decay.

To calculate the amount of cesium left after 120 years, we use the formua below.

Formula:

  • R' = R/(2^{T/t})............. Equation 1

Where:

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  • R' = New amount of cesium
  • T = Total time
  • t = Half-life

From the question,

Given:

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  • T = 120 years
  • t = 30 years

Substitute these values into equation 1

  • R' = 8640/(2^{120/30})
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Hence, The mass of cesium left afer 120 years is 540 grams.

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2 years ago
Adding fractions 1/6+2/3=
mars1129 [50]

Answer:

\frac{5}{6}

\frac{1}{6} + \frac{2}{3} is equivalent to \frac{1}{6} + \frac{4}{6}.

This is because \frac{2}{3}=\frac{4}{6}

The rule is, in order to add fractions, your denominators must be equivalent. In other words, you must have the same denominator for both fractions.

<em>Now what do we do? We add!</em>

\frac{1}{6} + \frac{4}{6} =\frac{5}{6}

This is because 4 + 1 = 5.

Your answer is \frac{5}{6}.

I hope this helps!

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>
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