document.write( "Question 796416: Please help me solve this question. A student answers 80% of the questions on a math exam correctly. If she answers 20 questions correctly,how many questions are on the exam?\r
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document.write( "Please help!\r
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document.write( "Thanks,
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document.write( "Adalia
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Algebra.Com's Answer #481395 by wilft1(217)![]() ![]() You can put this solution on YOUR website! another way of asking this question would be... \"20 is 80 percent of what number\" ? \n" ); document.write( "80/100 = 20/x \n" ); document.write( "reduce to lowest terms... \n" ); document.write( "4/5 = 20/x \n" ); document.write( "this makes it a little easier to figure out... \n" ); document.write( "divide 20 by 4, then multiply by 5 to get 25 \n" ); document.write( "so there were 25 questions on the test \n" ); document.write( " |