document.write( "Question 476566: Next week your math teacher is giving a chapter test worth 100 points. The test will consist of 35 problems. Some problems are worth 2 points and some problems are worth 4 points. How many problems of each value are on the test?) \n" ); document.write( "
Algebra.Com's Answer #852411 by mccravyedwin(409)\"\" \"About 
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document.write( "I thought you might enjoy comparing Greenestamps' solution to this problem: \r\n" );
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document.write( "Mrs. Jones has 35 animals, all sheep and ducks, on her farm. The animals \r\n" );
document.write( "have a total of 100 legs and 35 heads.  How many sheep and how many ducks\r\n" );
document.write( "are on her farm?\r\n" );
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document.write( "(1) If all 35 animals were ducks, the total number of legs would be only \r\n" );
document.write( "    35*2 = 70, which is 30 legs less than the actual total of 100 legs.\r\n" );
document.write( "    So we need another 30 legs.\r\n" );
document.write( "(2) Each sheep has 2 more legs than each duck.\r\n" );
document.write( "(3) To get the additional 30 legs, the number of sheep needed is 30/2 = 15.\r\n" );
document.write( "(4) So there are 15 sheep and 35-15 = 20 ducks.\r\n" );
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document.write( "ANSWER: 15 sheep and 20 ducks.\r\n" );
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document.write( "CHECK: 15(4) + 20(2) = 60+40 = 100\r\n" );
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document.write( "Edwin
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