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notanactualfairy ([personal profile] notanactualfairy) wrote in [community profile] fandomhigh2007-11-09 01:23 am
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Combined Mathematics #9 [Friday 11-9, Period 4]

"Last week," Jean-Paul began as he breezed into the room a full three minutes after class was supposed to start (he liked to think of it as being 'fashionably late' as opposed to 'unable to find my keys'), "was fractions. This week is the fraction's bastard child, percentage: fractions of one hundred. You like percentages. Really, you do. You see them all the time, even on the packaging of the food you eat. Percentages are what help you figure out how much that great pair of jeans on sale is actually going to set you back, or whether you should eat the whole bag of chips. Percentages are how politicians lie to you all the time via polls. Remember, children, there are lies, damned lies, and statistics." He sat down behind his desk. "Your mission, should you choose to accept it, is to come up with one common use of percentages I have not mentioned already, and then to create a word problem using percentages. Begin."

Re: Sign In

[identity profile] mrodneymckay.livejournal.com 2007-11-10 03:46 am (UTC)(link)
Rodney McKay
not_in_the_book: (Emo: Laugh)

Re: Assignment Time

[personal profile] not_in_the_book 2007-11-09 11:08 pm (UTC)(link)
"Taxes," Ronan said. "And, uh, a word problem? How about... Sales tax in Johnny's home country is 14%, but he's visiting a country where the sales tax is 20%. How much more will he pay for an overpriced 12 Euro souvenir mug than he would for a regular mug costing 7 Euro at home?"

[The answer, I'm sad to say I actually worked out -- longhand, without a calculator -- is 6.42 Euro.]