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4 years ago

Twenty-seven is 25% of

Mathematics

2 answers:

DanielleElmas [232]4 years ago

8 0

Let's firs rewrite this problem to say 27 is 25% of what number.

Reading through the problem we have 27 is, that's 27 equals,

25%, 25/100, of, times, what number, x.

Notice about that I put 25% as the fraction 25/100. This is because percent means over 100 so 25% means 25 over 100 or 25/100.

So now, our equation reads 27 = 25/100 · X.

Reducing the 25/100 to 1/4, we have 27 = 1x/4.

Multiplying both sides by 4 to get rid of the fraction, we have 108 = 1x.

Divide both sides by 1 to isolate x and we find that 108 = x.

So, 27 is 25% of 108.

DENIUS [597]4 years ago

5 0

Well...

27 = 25% (1/4) × a

27 = 1/4a

a = 27 x 4 = 108

answer: 108

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${\qquad\quad\qquad\huge\underline{{\sf Answer}}}$

Here we go ~

$\qquad \sf \dashrightarrow \: {x}^{2} + \cfrac{1}{ {x}^{2} } = 34$

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