at a certain state university last term, there were p students each of whom paid either the full tuition of x dollars or half the full tuition. What percent of the tuition paid by the p students last term was tuition from students who paid the full tuition? (1)of the p students, 20 percent paid the full tuition (2)the p students paid total of $91.2 million for tuition last term
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发表于 2011-9-25 00:20:31
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