22 over 9 as a mixed number

Mathematics

2 answers:

aalyn [17]2 years ago

8 0

That easy just divide 9 by 22 if need simplify it

tia_tia [17]2 years ago

8 0

$\frac{22}{9} = 2 \frac{4}{9}$

just divide the numerator by the denominator. Hope that helps :D

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7. Two hats and 3 ties cost $88.50. One hat and 2 ties cost $51.00. What does<br> each item cost?

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How to complete the square with a leading coefficient?

Kamila [148]

Factor out the leading coefficient:

$ax^2+bx+c=a\left(x^2+\dfrac bax+\dfrac ca\right)$

Now complete the square:

$x^2+\dfrac bax+\dfrac ca=x^2+\dfrac bax+\dfrac{b^2}{4a^2}-\dfrac{b^2}{4a^2}+\dfrac ca=\left(x+\dfrac b{2a}\right)^2-\dfrac{b^2}{4a^2}+\dfrac{4ac}{4a^2}=\left(x+\dfrac b{2a}\right)^2-\dfrac{b^2-4ac}{4a^2}$

Now, redistributing the leading $a$ gives

$a\left(x+\dfrac b{2a}\right)^2-\dfrac{b^2-4ac}{4a}$