Week 3 Problem C

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Week 3 Problem C

Post  Archis on Tue Nov 11, 2008 11:06 pm

The XIII International AIDS Conference was held in Durban, South Africa. Of the 34.3 million of the world's residents infected with AIDS, 24.5 million of them live in Africa. That's right; two-and-a-half times as many sufferers of HIV/AIDS live in Africa than in the rest of the world combined. What percent of those with AIDS live in Africa?
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Week 3 Problem D

Post  Archis on Tue Nov 11, 2008 11:07 pm

A problem from an archive of problems:
Last week, the price per gallon was $1.59 on average nationwide. But never fear. The Department of Energy is predicting that high gas prices will fall by September to about $1.40 a gallon. What will be the percent decrease in price if that happens?
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