2 years ago

If 100% of a number is 200, what is 90% of the number?

Mathematics

2 answers:

Pavel [41]2 years ago

5 0

I'm pretty sure the answer is 180

Lera25 [3.4K]2 years ago

4 0

Answer:

180

Step-by-step explanation:

100:200 is 90:x

x is 180

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Stella [2.4K]

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Step-by-step explanation:

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2 years ago

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1 year ago

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At 4:00p.m the temperature was 90F after this point the temperature dropped 1.5F per hour until sunrise the next morning write a

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Answer:

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Step-by-step explanation:

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2 years ago

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marta [7]

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2 years ago

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Solve the equation on the interval [0,2π). cos^4x=cos^4xcscx

Alisiya [41]

$\bf cos^4(x)=cos^4(x)csc(x)\\\\
-----------------------------\\\\
cos^4(x)=cos^4(x)\cfrac{1}{sin(x)}\implies cos^4(x)=\cfrac{cos^4(x)}{sin(x)}
\\\\\\
cos^4(x)sin(x)=cos^4(x)\implies cos^4(x)sin(x)-cos^4(x)=0
\\\\\\
cos^4(x)[sin(x)-1]=0\to 
\begin{cases}
cos^4(x)=0\to x=cos^{-1}(0)\\
----------\\
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sin(x)=1\to x=sin^{-1}(1)
\end{cases}$

$\bf \measuredangle x = cos^{-1}(0)\implies \measuredangle x = 
\begin{cases}
\frac{\pi }{2}\\\\
\frac{3\pi }{2}
\end{cases}
\\\\\\
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2 years ago