What is 45 percent as a fraction

2 answers:

8 0

45% as a fraction would just be 45/100 because a fraction is just adding a 100 to make a denominator. (Only in the case of changing a percent to a fraction) If you choose the simplify your answer then the fraction would be 9/20.
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Vlad [161]3 years ago

3 0

Hello There!

45% as a fraction is $\frac{9}{20}$

45% = $\frac{45}{100}$

45 ÷ 100 = 0.45

$\frac{0.45}{1}$ X $\frac{100}{100}$ = $\frac{45}{100}$

REDUCED: $\frac{9}{20}$

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How to find matrics M

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$\left[\begin{array}{ccc}9&7\\-4&2\end{array}\right] -4M=\left[\begin{array}{ccc}-3&3\\4&-18\end{array}\right]\qquad(*) \\\\M=\left[\begin{array}{ccc}a&b\\c&d\end{array}\right]\to4M=\left[\begin{array}{ccc}4a&4b\\4c&4d\end{array}\right]$

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$(_{21})\qquad-4-4c=4\ \ \ \ |+4\\-4c=8\ \ \ \ |:(-4)\\c=-2\\\\(_{22})\qquad2-4d=-18\ \ \ \ |-2\\-4d=-20\ \ \ \ \ |:(-4)\\d=5\\\\Answer:\ A.\ M=\left[\begin{array}{ccc}3&1\\-2&5\end{array}\right]$