document.write( "Question 56215: A gallon of paint that regularly sells for $20 was reduced to $15.00. By what percentage was the price reduced?
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\n" ); document.write( " a. 75%
\n" ); document.write( " b. 40%
\n" ); document.write( " c. 33 1/3%
\n" ); document.write( " d. 25%
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Algebra.Com's Answer #38147 by funmath(2933)\"\" \"About 
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A gallon of paint that regularly sells for $20 was reduced to $15.00. By what percentage was the price reduced?
\n" ); document.write( "
\n" ); document.write( " a. 75%
\n" ); document.write( " b. 40%
\n" ); document.write( " c. 33 1/3%
\n" ); document.write( " d. 25% \r
\n" ); document.write( "\n" ); document.write( "In algebra talk:
\n" ); document.write( "let the original price be:20
\n" ); document.write( "The discount is x
\n" ); document.write( "The sale price is: 15
\n" ); document.write( "The equaltion is:
\n" ); document.write( "20-x(20)=15
\n" ); document.write( "-20+20-20x=15-20
\n" ); document.write( "-20x=-5
\n" ); document.write( "\"x=-5%2F-20=1%2F4=.25\"
\n" ); document.write( "In percentage that would be: .25(100%)=25% (d)
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\n" ); document.write( "By thinking it through, you can figure it out without algebra:
\n" ); document.write( "You are paying:
\n" ); document.write( "\"15%2F20=3%2F4\"=.75(100%)=75% that means the discount was 100%-75%=25%. (d)
\n" ); document.write( "Happy Calculating!!!
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