3 years ago

What operation is used to change a PERCENT to a DECIMAL?

Mathematics

2 answers:

Alenkasestr [34]3 years ago

7 0

Answer:

divide by 100 i think

ZanzabumX [31]3 years ago

3 0

To convert a percent to a decimal, we divide by 100. This is the same thing we do to convert a percent to a fraction.

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ABCD is a isosceles trapezoid with AB=10, DB=8 and angle A=120 degrees what is the length of CD

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Answer:

The answer is 10.6 (I'm sorry if it's wrong)

Step-by-step explanation:

found out what D and B is (they both are 4 I think) then add 10 with 8 then divide 120 with 18 which is 6.6 then add what D is and then I got 10.6

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3 years ago

William went shopping for a new phone because of a sale. The store was offering a 15% discount. If the price on the tag was $41,

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Answer: $34.85

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During second period, Bonnie completed a grammar worksheet. She got 18 out of 20 questions correct. What percentage did Bonnie g

sp2606 [1]

Answer:

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Step-by-step explanation:

You want to make calculating easy and to do this, you multiply write out 18 out of 20 like a fraction, 18/20, and multiply both the numerator and the denominator by 5 because 20*5 = 100. 18*5 = 90. 90/100 is the same thing as 90%. Hope this helps!

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2 years ago

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zhuklara [117]

Answer:

Step-by-step explanation:

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3 years ago

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How can I use the figure to find the exact value of sin 2theta?

Iteru [2.4K]

Answer:

sin(2θ) = 24/25

Explanation:

In order to find the value of sin 2θ, first, recall the double-angle formula for sine.

$\sin 2\theta=2\sin \theta\cos \theta$

From the right-triangle:

$\begin{gathered} \sin \theta=\frac{\text{Opposite}}{\text{Hypotenuse}}=\frac{3}{5} \\ \cos \theta=\frac{\text{Adjacent}}{\text{Hypotenuse}}=\frac{4}{5} \end{gathered}$

Substitute these values into the double-angle formula obtained earlier.

$\begin{gathered} \sin 2\theta=2\sin \theta\cos \theta \\ =2\times\frac{3}{5}\times\frac{4}{5} \\ =\frac{24}{25} \end{gathered}$

The exact value of sin(2θ) is 24/25.

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1 year ago