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Earn +20 ptsQ: Twenty percent of what number is 30?
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Thirty is twenty percent of what number?
150
Is 30 percent an irrational number?
Rational
What is an algebraic expression of thirty percent of a number?
.3x=30%of x When x=the number you are taking the percentage of
45 is 120 percent of a number what is 80 percent of the same number?
If 45 = 120% then simply divide 45 by 120, to find 1%, which is 0.375 and then multiply this by 80 to find 80%, which is 30 - or - 1.20X = 45; X = 45/1.20 = 37.5; then 80% of the number is: 37.5 X .80 = 30
130 percent of what number is 39?
Well, darling, to find 130% of a number, you just multiply the number by 1.3. So, in this case, 39 is 130% of what number? Simple math tells us that the number is 30. But hey, who's counting?
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