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Marina86 [1]
4 years ago
5

(5 1/4) divided by (-2 1/4) need HELP tnx

Mathematics
2 answers:
svp [43]4 years ago
7 0

We must transform the mixed numbers to the improper fraction.

5\dfrac{1}{4}=\dfrac{5\cdot4+1}{4}=\dfrac{21}{4}\\\\-2\dfrac{1}{4}=-\dfrac{2\cdot4+1}{4}=\dfrac{9}{4}

Calculate a product:

\left(5\dfrac{1}{4}\right):\left(-2\dfrac{1}{4}\right)=\dfrac{21}{4}:\left(-\dfrac{9}{4}\right)=-\dfrac{21}{\not4_1}\cdot\dfrac{\not4^1}{9}=-\dfrac{21:3}{9:3}=-\dfrac{7}{3}

soldier1979 [14.2K]4 years ago
6 0

Answer:

-7/6

Step-by-step explanation:

That'd be 21/4 divided by -9/2, or, equivalently, 21/4 times -2/9.

From this we get -42/36, which, when reduced, yields -7/6.


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In each turn of a game you toss two coins. if 2 heads come up, you win 2 points and if 1 head comes up you win 1 point. if no he
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<h3>What is expected value?</h3>

Expected value describes the long term average level of a random variable based on its probabilty distribution.

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