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MATH PROBLEM - Calculate Fractional Proportion of Voters










































The table below lists the fraction of the total electorate made up by different groups based on education level:

no high school diploma- (1/25)

high school graduate, no education- (1/5)

some college- (31/100)

What fraction of voters had a college degree?


Comments for MATH PROBLEM - Calculate Fractional Proportion of Voters

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Feb 12, 2012
Calculate Fractional Proportion of Voters
by: Staff


Question:

The table below lists the fraction of the total electorate made up by different groups based on education level:

no high school diploma- (1/25)

high school graduate, no education- (1/5)

some college- (31/100)

What fraction of voters had a college degree?



Answer:


Fraction of College Degree Voters = 1 - (no high school diploma) - (high school graduate, no education) - (some college)

Fraction of College Degree Voters = 1 - (1/25) - (1/5) - (31/100)

Fraction of College Degree Voters = 1 - (1/25)*(4/4) - (1/5)*(20/20) - (31/100)

Fraction of College Degree Voters = 1 - (1*4)/(25*4) - (1*20)/(5*20) - (31/100)

Fraction of College Degree Voters = 1 - (4/100) - (20/100) - (31/100)

Fraction of College Degree Voters = 100/100 - (4/100) - (20/100) - (31/100)

Fraction of College Degree Voters = (100-4-20-31)/100

Fraction of College Degree Voters = 45/100

Fraction of College Degree Voters = (9*5)/(20*5)

Fraction of College Degree Voters = (9/20)*(5/5)

Fraction of College Degree Voters = (9/20)*(1)


Fraction of College Degree Voters = 9/20


>>>the final answer is: 9/20




Thanks for writing.

Staff
www.solving-math-problems.com



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