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Ezra
Professor
LaoTo get the answer, you can use cross multiplication:
(20/5%)*(X/100%)
X = (20*100)/5
X = 400
Therefore, 20 is 5% of 400.
Another method you can use is using the formula (Percentage = Base x Rate)
Given: P = 20 ; B = unknown ; R = 5% or 0.05 in decimal
Solution:
20 = B x 0.05
20/0.05 = B
400 = B
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5 is what percent of 400?
To find 5 percent of a number, multiply the number by 0.05. In this instance 0.05 x 400 = 20. Therefore, 5 percent of 400 is equal to 20.
25 percent of what number is equal to 5?
To find the number, you can set up the equation: 0.25x = 5. To solve for x, divide both sides by 0.25, giving you x = 5 / 0.25. Therefore, the number is 20.
What number is 20 percent of 400?
20% = 1/5, so 400/5 = 80; alternatively 20 x 400/100
What number is 20 percent of 35?
35% of 20 = 35% * 20 = 0.35 * 20 = 7
How do you write a ratio as a percent?
A percent is a number relative to 100. Therefore, we want the number 100 in the ratio. In order to do that, we need to multiply BOTH numbers in the ratio by a number so that the second number of the new ratio is equal to 100. The first number of the new ratio is the percent. For example: 4:5 = [4*20]:[5*20] = 80:100 = 80%
