document.write( "Question 1114164: three-fourths of the students in Math 200 got a C on the last test, and one-fifth received an A. Suppose 22 more students received C's than received A's. How many students are in the class?
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Algebra.Com's Answer #729174 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "Let x = all the population of the class.\r\n" );
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document.write( " = 0.75x  got a C.\r\n" );
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document.write( " = 0.2x  got an A.\r\n" );
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document.write( "The difference  is  0.75x - 0.2x = 0.55x,  or 22.\r\n" );
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document.write( "The equation is  0.55x = 22.\r\n" );
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document.write( "The answer is   = 40.\r\n" );
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