SOLUTION: *corrected information* A public opinion survey is administered to determine how different age groups feel about an increase in the minimum wage. Some of the results are shown i

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Question 1035349: *corrected information*
A public opinion survey is administered to determine how different age groups feel about an increase in the minimum wage. Some of the results are shown in the table below.
For Against No Opinion
21 - 40 years __ 20 5
41 - 60 years 20 __ 20
over 60 years 55 15 5
The survey showed that 40% of the 21 - 40 year-olds surveyed are against an increase, and 15% of the entire sample surveyed has no opinion.
How many 21 - 40 year-olds surveyed are for an increase?
How many 41 - 60 year-olds are against an increase?
Found 3 solutions by addingup, Amrata1, MathTherapy:
Answer by addingup(3677)   (Show Source): You can put this solution on YOUR website!
For Against No Opinion
21 - 40 years __ 20 5
41 - 60 years 20 __ 20
over 60 years 55 15 5
````````````````````````````````````
Cannot understand. I understand that this website is not very friendly when it comes to tables, so please re-write:
&&&&&&&&&&&&&&
21-40
For..........
Against......
No opinion...
&&&&&&&&&&&&&&&
41-60
For..........
Against......
No opinion...
This way, even if the numbers don't line up vertically, we can tell what information the number belongs with
Answer by Amrata1(11)   (Show Source): You can put this solution on YOUR website!
Let the entire no. Of people surveyed be x.
Total no. Of no opinion = 15% * x = (5+20+5)
Or, 15/100 * x = 30
Therefore, x= 200.
Now, let y be the no. Of people of age group 21-40 years who were surveyed.
Therefore 40% * y = 20
Therefore y = 50
No. of (For + against + no opinion) of 21-40 years age group = 50
Or, for + 20 + 5 = 50
1. For = 25 in age group 21-40 years.
Now, total no. Of all people = 200
No. of people in (Age Grp 21-40 + age Grp 41-60 + over 60) = 200.
Or, (50)+( 20+against+ 20)+(55 +15+ 5) = 200
Therefore, no. Of people against increase in age group 41-60 = 35.



Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

*corrected information*
A public opinion survey is administered to determine how different age groups feel about an increase in the minimum wage. Some of the results are shown in the table below.
For Against No Opinion
21 - 40 years __ 20 5
41 - 60 years 20 __ 20
over 60 years 55 15 5
The survey showed that 40% of the 21 - 40 year-olds surveyed are against an increase, and 15% of the entire sample surveyed has no opinion.
How many 21 - 40 year-olds surveyed are for an increase?
How many 41 - 60 year-olds are against an increase?
Number of 21 - 40 year-olds for an increase: 

Number of 41 - 60 year-olds against an increase:  

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