how would i solve 4 1/4 % of (?) = 8.5?

2009-03-17 10:57 am
it is finding a number when the percentage of it is known, please help!!!

回答 (11)

2009-03-17 11:01 am
✔ 最佳答案
So the question is 4.25%x=8.5
4.25%=.0425
So we get
.0425x=8.5
x=8.5/.0425
x=200

So the unknown is 200.
2009-03-17 8:25 pm
= 8.5/(4 1/4%)
= (8 1/2)/([4 1/4]/100)
= (17/2)/([17/4]/100)
= (17/2)/(17/400)
= 17/2(400/17)
= ([17/17]/[2/2])([400/2]/[17/17])
= 200

Answer: 200
2009-03-17 7:41 pm
8.5 ÷ (4 1/4)%
= 8.5 ÷ (16/4 + 1/4)/100
= 8.5 x 100/(17/4)
= 850/(17/4)
= 850(4/17)
= 200
2009-03-17 6:14 pm
4 1/4 equals tp 17/4 %
every time u see % it means it divide with 100
17/4 / 100 x X = 8.5
17X/400 = 8.5
17X = 3400
X =200
2009-03-17 6:07 pm
[4 1/4] /100 x ?=8.5
?=8.5 /(4 1/4/100)=8.5/0.0425=200
=================================================
Double check; 4 1/4 /100 x200=4 1/4 x 2=8.5
good luck.
2009-03-17 6:05 pm
Let's call the number we are trying to find x.

4 1/4% * x = 8.5
4 1/4 = 4.25%
Convert the % into a fraction
4.25/100 * x = 8.5

Multiply both sides by 100/4.25 to get x on its own
x = 100/4.25 * 8.5
x = 850/4.25 = 85000/425 = 200
2009-03-17 6:05 pm
well 41/4% of something can be expressed in decimals as 0.0425. so you have a problem where n represents your mystery number and you times it by 0.0425. So 0.0425 x n = 8.5

To figure out what n (your mystery number) equal just divide 8.5 by 0.0425 and that'll give you *drum roll* n or ? equal 200
2009-03-17 6:03 pm
4 1/4 % of (?) = 8.5 OR (?) = 8 1/2 divided by 4 1/4 % = 2 /% = 200
2009-03-17 6:03 pm
4 1/4 equals tp 17/4 %
every time u see % it means it divide with 100
17/4 / 100 x X = 8.5
17X/400 = 8.5
17X = 3400
X =200
2009-03-17 6:02 pm
just convert 4 1/4% to decimal, which is 0.0425, then divide 8.5 by that value, 0.0425, then you'll get the number..


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