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3 years ago

Nvm no one helped me, answer is 17/25 -.-

Mathematics

1 answer:

geniusboy [140]3 years ago

3 0

The answer is 17/25. Hope this helps! :) I know how you feel!

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In the student council election, Davina received 50 votes, Binh received 40 votes and Eden received 80 votes. What is the ratio

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Answer: C

I hope this helps. Lol I solved it easily. Good luck

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2 years ago

What is the 12th term of the sequence 3,6,12,24....

Sati [7]

$a_{0}$ =3

r=common ratio: 12/6=2; 6/3=2

r=2, $a_{n}$ = $2^{n-1}$ *3

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$a_{12}$ = $2^{12-1}$ *3

$a_{12}$ = $2^{11}$ *3

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The twelfth term in the sequence is 6144

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3 years ago

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The denominator of a fraction is 10 more than its numerator.

Dennis_Churaev [7]

The right answer is Option C : 5

Step-by-step explanation:

Let,

The numerator of fraction = x

The denominator of a fraction is 10 more than its numerator.

$\frac{x}{x+10}$

When 1/3 is added to this fraction,

$\frac{x}{x+10}+\frac{1}{3}$

the resulting fraction’s denominator is three times the denominator of the original fraction its numerator is 15 less than its denominator

$\frac{3(x+10)-15}{3(x+10)}$

Therefore, it becomes

$\frac{x}{x+10}+\frac{1}{3} = \frac{3(x+10)-15}{3(x+10)}$

Taking LCM on left side

$\frac{3x+(x+10)}{3(x+10)}=\frac{(3x+30)-15}{3(x+10)}\\\\\frac{3x+x+10}{3(x+10)}=\frac{3x+30-15}{x(x+10)}\\\\\frac{4x+10}{3(x+10)}=\frac{3x+15}{3(x+10)}$

Multiplying both sides by 3(x+10)

$3(x+10)*\frac{4x+10}{3(x+10)}=\frac{3x+15}{3(x+10)}*3(x+10)\\4x+10=3x+15\\4x-3x=15-10\\x=5$

The numerator of original fraction is 5.

The right answer is Option C : 5

Keywords: fraction, addition

Learn more about fractions at:

#LearnwithBrainly

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3 years ago