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finlep [7]
2 years ago
12

What is 20% of 40, work it out​

Mathematics
1 answer:
Darina [25.2K]2 years ago
6 0

Hey there

Answer:

  • 20% of 40 is <u>8</u><u> </u><u>.</u>

Step-by-step explanation:

In this question we are given a <u>number </u><u>that </u><u>is </u><u>4</u><u>0</u><u> </u><u>.</u> And we have asked to find <u>2</u><u>0</u><u>%</u><u> </u><u>of </u><u>it </u><u>.</u>

<u>Solution</u><u> </u><u>:</u><u> </u><u>-</u>

\longmapsto \qquad \: \: 20\% \times 40

We know that ,

  • Percent ( % ) represent <u>1</u><u>/</u><u>100</u>

<u>S</u><u>o </u><u>,</u>

<u>\longmapsto \qquad \: \: ( 20 \times  \dfrac{1}{100})  \times 40</u>

<u>or </u><u>,</u>

<u>\longmapsto \qquad \: \:  \dfrac{20}{100}  \times 40</u>

Now cancelling zero :

\longmapsto \qquad \: \:  \dfrac{2 \cancel{0}}{1 \cancel{0} \cancel{0}}  \times 4 \cancel{0}

We get ,

\longmapsto \qquad \: \:  2 \times 4

\longmapsto \qquad \: \:     \blue{\underline{\boxed{\frak{8}}}} \quad \bigstar

  • <u>Therefore</u><u> </u><u>,</u><u> </u><u>2</u><u>0</u><u>%</u><u> </u><u>of </u><u>4</u><u>0</u><u> </u><u>is </u><em><u>8</u></em><em><u> </u></em><em><u>.</u></em>

<h2>#Keep Learning</h2>

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<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%5Cfrac%7B36%7D%7B4%7D%20%7D%20" id="TexFormula1" title=" \sqrt{ \frac{36}{4}
iris [78.8K]

Step-by-step explanation:

\sqrt{36/4} =\sqrt{36} /\sqrt{4}

\sqrt{36}=6

\sqrt{4} =2

6/2=3

Hope that helps :)

7 0
3 years ago
Which of the following expressions represents the area of a trapezoid with bases of 3x and 5x and a height of 6x?
BaLLatris [955]
Trapezoid Area = (Base1 + Base2) (h/2)
so A = (3x + 5x )(6x/2)= 24x^2
6 0
3 years ago
Cos²x + sin^2x/cscx-cot^2x
Anna [14]

Answer:

1.

Step-by-step explanation:

I am assuming you want to simplify this.

cos^2 x + sin^2 x = 1 and

csc^2 x = 1 + cot^2 x   so  csc^2x - cot^2 x = 1

So the answer is 1/1 = 1.

5 0
3 years ago
Match the inequality with its line graph.
zepelin [54]

Answer:

The answer to your question is below

Step-by-step explanation:

A) 2x > -6

   x > -6/2

   x > -3

   It must be a graph with an open circle starting at -3 and then to the right.

   It is the first graph.

B) x - 4 < -7

   x < -7 + 4

  x < -3

  The graph must be an open circle starting at -3 and pointing to the left.

  it is the second graph.

C) 6 + x ≤ 3

    x ≤ -6 + 3

    x ≤ -3

   The graph must be a closed circle starting at -3 and pointing to the left.

   it is the forth graph.

D) -x - 5 ≤ -2

    -x ≤ -2 + 5

   - x ≤ 3

     x ≥ -3

    The graph must be a closed circle starting at -3 and pointing to the right.

    It is the third graph.

8 0
3 years ago
*ANSWER IMMINENTLY GIVING 20 POINT BRAINIEST*
grigory [225]

Answer:

Its not 20 points lol

Step-by-step explanation:

let me know when its 20 and i will answer

8 0
3 years ago
Read 2 more answers
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