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BigorU [14]
3 years ago
6

Twenty-seven is 25% of

Mathematics
2 answers:
DanielleElmas [232]3 years ago
8 0

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

Reading through the problem we have <em>27 is</em>, that's <em>27 equals</em>,

<em>25%</em>, <em>25/100</em>, <em>of</em>, <em>times</em>, <em>what number</em>, <em>x</em>.

Notice about that I put 25% as the fraction 25/100. This is because <u><em>percent</em></u> means <em>over 100</em> 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 <em>x</em> and we find that 108 = x.

So, 27 is 25% of 108.

DENIUS [597]3 years ago
5 0

Well...

27 = 25% (1/4) × a

27 = 1/4a

a = 27 x 4 = 108

answer: 108

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