document.write( "Question 427020: The average age of a group of teachers and students is 20. The average age of the teachers is 35. The average age of the is 15. What s the ratio of teachers to students The answer need to be a fraction in simplest form, \n" ); document.write( "

Algebra.Com's Answer #296996 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "Let x and (1-x) represent the fractional portion of teachers and students respectively 
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document.write( " 35x + 15(1-x) = 20
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document.write( "        20x = 5
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document.write( "          x = 1/4, are teachers and 3/4 are students.
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document.write( "ratio of teachers to students is 1:3\r
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document.write( "CHECKING our Answer***
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document.write( " .25*35 + .75*15 = 8.75 + 11.25 = 20 \n" );
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