what percent of 80 is 30?

2007-12-18 5:17 pm

回答 (8)

2007-12-18 5:21 pm
✔ 最佳答案
80_______100%
30_______x%

80*x = 3000

x = 300/8

x = 37.5%

FCH.
2007-12-19 1:37 am
Method 1
30/80 x 100%
= 3000/80 %
= 37.5%

Method 2
80y% =30
80y/100 = 30
80y = 3000
y = 3000/80
y = 37.5
2007-12-19 1:26 am
37.5%



because you divide 30 by 80 and multipy your answer by 100

30 / 80 = 0.375
0.375 x 100 = 37.5%

=]
2007-12-19 1:24 am
Let x percent of 80 be 30.
80(x/100)=30
80x=3000
x=3000/80
x=300/8
=37.5 percent of 80 is 30.
2007-12-19 1:22 am
divide 30 by 80
=.375

move the decimal 2 places to right and thats ur answer

37.5%
2007-12-19 1:21 am
Simply divide 30 by 80.

30/80=3/8=.375=37.5%
2007-12-22 6:03 pm
Suppose I scored 30 out of 80 in a test.

% mark is given by:-
( 30 / 80 ) x 100 %
( 3 / 8 ) x 100 %
300 / 8 %
75 / 2 %
37 ½ %

Conclusion
Must do better!
2007-12-19 1:49 am
If the unknown is x, then (x/80)*100=30
This gives x as:

x = 80*30/100 = 24

Your answer is 24.


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