40% as fraction and decimal

Answers

Answer 1
Answer:

Answer:

40% as a decimal is 0.4

40% as a fraction is 2/5

Answer 2
Answer:

Step-by-step explanation:

Let's go over each of these step by step.

First, let's see 40% as a fraction.

Since 40% is out of 100%, we can rewrite that as 40/100.

If you want to simplify it, let's do the following.

40/100

Divide both sides by 20, and you'll end up with:

2/5.

Now, let's do 40% as a decimal.

This is pretty simple.

40% is 40/100 as said before, and to find it as a decimal,

let's divide 40 and 100.

40 divided by 20 = 0.4

Therefore, we can conclude the following:

40% as a fraction is 40/100, or 2/5.

40% as a decimal is 0.4

Hope this helped! :)


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Which choice is equivalent to the expression below?√√-12
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Final answer:

The expression √√-12 is equivalent to -2√3.


Explanation:

The expression √√-12 represents the square root of the square root of -12. Since the square root of -12 is not a real number, the expression is not defined in the set of real numbers. However, it is possible to define the square root of a negative number using imaginary numbers. The choice equivalent to √√-12 is -2√3 or option C.


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Draw an isosceles Triangle with exactly one 40 degrees angle. Is this the only possibility or can you draw another triangle that will also meet these conditions? How is this different from drawing a triangle given 2 sides and the angle between them?Please answer ASAP Due today PLEASE!!!

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Answer:

The correct answer is yes, we can draw an isosceles triangle with only one 40° angle. NO this is not the only possibility.

Step-by-step explanation:

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Answer:

your answer is fifteen

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Step-by-step explanation:

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Final answer:

This answer uses Gauss's method to effectively find the sum of arithmetic series without a calculator or formula. By pairing numbers at the start and end of the series, a constant sum is found which can be easily multiplied by the number of pairs, providing the total sum of series. The sums are 80200, 149238, and 1560 respectively for the given scenarios.

Explanation:

To solve a series of summations without the use of a calculator or formula, we can apply a method used by Gauss. This problem relates to the concept of arithmetic series in mathematics.

  1. Step 1: Understand the problem. We're asked to find the sum of certain series. This involves adding all the numbers in the series together.
  2. Step 2: Devise a plan. The strategy that Gauss used was to pair numbers at the start and end of an arithmetic series. This way, each pair totals the same sum, making it easier to solve.
  3. Step 3: Carry out the plan.
    1. (a) Sum of 1 to 400: Pair numbers (1+400, 2+399, 3+398, etc.), every pair equals 401. There're 200 pairs, so 401*200 = 80200.
    2. (b) Sum of 1 to 545: Same strategy. Each pair (1 + 545, 2 + 544, 3 + 543, etc.) equals 546. There're 273 pairs, so the sum is 546*273 = 149238.
    3. (c) Sum of even numbers from 2 to 78: Notice it is an arithmetic series (2, 4, ...78). The first term a = 2 and last term l = 78. There're 39 terms. By using formula for arithmetic series (n/2)*(a + l), we have (39/2) * (2 + 78) = 1560.
  4. Step 4: Look back. Confirm the plan was executed correctly by reviewing the steps taken.

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