similar figs pract percents
100
17
percent --> means out of 100--> 
-->
17%
35%-->
35 out of 100
100
100
35
n
5
If 2 out of 5 kids prefer water,
 then how many out of 100 prefer water?
All fractions are not out of 100
2
=
100
n
solve proportion
scale factor
2
2
5
5
x20
x20
=
=
n
n
100
100
-->
100
40
n=40 -->40/100-- >40%
200
5
40%
= n
n=40
%
Solve by scale factor or solve proportion
10
7
=
100
n
n=
%
Solve by scale factor or solve proportion
8
25
=
100
n
n=
%
Solve by scale factor or solve proportion
32
50
=
100
n
n=
%
Solve by scale factor or solve proportion
9
20
=
100
n
n=
%
Solve by scale factor or solve proportion
8
25
=
100
n
n=
%
Solve by scale factor or solve proportion
3
8
decimals are allowed
=
100
n
n=
%
Solve by scale factor or solve proportion
decimals are allowed
7
4
=
100
n
round to nearest whole number
-->.5714
n=57
%
Solve by scale factor or solve proportion
decimals are allowed
11
8
=
100
n
round to nearest whole number
n=
%
Solve by scale factor or solve proportion
decimals are allowed
15
2
=
100
n
round to nearest whole number
n=
%
Solve by scale factor or solve proportion
decimals are allowed
6
3
=
n
100
round to nearest whole number
n=
%
Solve by scale factor or solve proportion
decimals are allowed
16
7
=
n
100
round to nearest whole number
n=
%
Solve by scale factor or solve proportion
decimals are allowed
13
10
=
n
100
round to nearest whole number
n=
%
Solve by scale factor or solve proportion
decimals are allowed
11
5
=
n
100
round to nearest whole number
n=
%
If 6 out of 10 students like candy, what 
percent like candy?
n=
%
If 5 out of 13 dogs chase cats, what percent
of dogs chase cats? nearest whole number
n=
%
If  9 out of 16 students like math, what percent of students like math? nearest whole #
n=
%
If 38 out of 50 people prefer math over english,
what percent of people prefer math?
nearest whole number
n=
%
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