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2 years ago

What percent is 14 out of 18

Mathematics

1 answer:

lana [24]2 years ago

5 0

Hi!

$14/18=0.778$

$0.778*100/100$

$=0.778*100%$

$(0.778*100)%$

$77.78$

77.78% is correct answer.

Explanation: This question is super super easy. First you had to divide 14 by 18 and it gave us 14/18=0.7778. Then multiplied by the answer from first step by 100 to get that answer, and it gave us 0.7778*100=77.78%is the right answer. Hope this helps! And thank you for posting your question at here on Brainly. And have a great day. -Charlie

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The equation above is the intercept form. Both a-term and b-term are the roots of equation.

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These are the roots of equation. Therefore we substitute a = - 1/3 and b = 5 in the equation.

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Here we can convert the expression x+1/3 to this.

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Simplify by multiplying both expressions.

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Answer Check

Substitute the given roots in the equation.

$3 {(5)}^{2} - 14(5) - 5 = 0 \\ 75 - 70 - 5 = 0 \\ 75 - 75 = 0 \\ 0 = 0$

$3( - \frac{1}{3} )^{2} - 14( - \frac{1}{3}) - 5 = 0 \\ 3( \frac{1}{9} ) + \frac{14}{3} - 5 = 0 \\ \frac{1}{3} + \frac{14}{3} - \frac{15}{3} = 0 \\ \frac{15}{3} - \frac{15}{3} = 0 \\ 0 = 0$

The equation is true for both roots.

Answer

$\large \boxed {3 {x}^{2} - 14x - 5 = 0}$

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