Why  when you take 100 +20% is not equal to 120-20%?
445439
The main reason is that the two 20%'s are not the same.  The first is 20% of 100.  The second is 20% of 120.\n\nSo  100 + 20% of 100 =  100 + 20 = 120\nand 120 - 20% of 120 =  120 - 24 = 96\n\n\nYou are taking 20% of a different number.
801140
60.  Because 120 doesn't go into 1260 evenly.  But 60 (or 120/2), which would be your next choice, does.  And if 60 didn't work, you would have next tried 40 (120/3), then 30 (120/4), then 24 (120/5) and so on.
781808
18.32% (multiply times 12)
683869
0.01 is already decimal..\nif you want 0.01%, it should be 0.01/100=0.0001
884618
Yeah, exactly like what Steven Procter said.\n\nIn short, the formula is something like this:\na/b x 100 = c %\n\na/b is the decimal number that you will get by dividing a over b.  In your case, a = 40,400 and b = 324,800.  \n\nc % is the percentage you gain after multiplying the decimal number you obtain with 100.\n\nHope you understand.
108007
I think it goes like this:\n20% = .2, 25% = .25\n\nlet x = final volume\n.25(12) = .2(x)\n1.25(12) = x\n15 = x\nif x = final volume, volume added = x - 12\nor 15\n15 - 12 = 3\nadd 3 L
45248
Take your calculator for any similar problem and divide, in this case, 60 by 75 and multiply by the decimal result by 100 and you will have a percentage. This works for all numbers. Take for example what is 19 of 20. Divide 19 by 20 and multiply time 100 and you will have 95%. This is how it is done.
1099943
Well you first take 8 % of 1875 which is 150. (1875 x .08). Then, take 62% of 150 (150x.62), which is 93. Hope that helped!
619982
460.21 /20 *100 = 2301.05
1102902
a 50/50 chance is a 99/100 not sure because the chances are much lower.\nany chances that is in a positive sure gives us a 75% up.\nour mind tells us that we knew for the fact the result may be given. but lower to that , if we are not quite sure about it, then, chances are lower. "come what may", if that's what you think.
789671
Sorry, 0.19 is not equal to 200..... ? Perhaps you mean fraction ratios? (0.19 / 200) = (0.16 / x ) If that is the case, cross multiply and divide (0.16 * 200) / 0.16 = 168.42
290871
20% racemised, so 10% inverted. 120-12 = 108, that's the total +rotation. 108-12 = 96, that's minus the reverse rotation. So the observed is +96.
283727
well... if you want them to approximate... \n\nPercent basically breaks down to "per 100"... cent meaing 100.\n\nSo, have them move the decimal place in both numbers to the point where you're getting a number close to 100.\n\nin this case 99.26 and 109.35\n\nApproximating 99 and 110 so it'd be something like 90-92%
798266
Lets say the dollar amount is 'x'\n\nx * 20/100 = 85/100\n\n20x = 85\nx=85/20\n\n==> x=4.25
246017
well to get a fraction out of a decimal you find what place value the decimal is in example- 0.58 the 58 is in the hundreths  58over100 but you can reduce it thats a whole other story but anyways 58 over 100 is actualy 29 over 50 and thats your fraction you can also do it backwards to get a decimal out of a fraction but i dont feel lik explaining that.  to get a percent out of a decimal all you have to do is find what place value the decimal is example 0.7 well the 7 isnt in the hundredths so add a 0 to the end and you hve 70 over 100so thats 70 percent i would explain more but that would take to long.  so did you like your lesson it was pretty good being it was taought by an 11 year old and this 11 year old would realy like to have this answer be voted as best
287137
if you want to know 10% of 124   you change the percentage into decimal points  and multiply the number by the decimal point  like this     124 x .10 = 1.24  or if you want to know 25% of something you do the same thing\n100 x .25 =  25.  understand?
579677
ACK! My brain hurts.  If anyone does know the correct answer will they explain why it is not 90? LOL