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Friday 24 August 2007
Evolution of Math
1. Teaching Math In 1950
A logger sells a truckload of lumber for $100. His cost of production
is 4/5 of the price. What is his profit?
2. Teaching Math In 1960
A logger sells a truckload of lumber for $100. His cost of production
is 4/5 of the price, or $80. What is his profit?
3. Teaching Math In 1970
A logger sells a truckload of lumber for $100. His cost of production
is $80 Did he make a profit?
4. Teaching Math In 1980
A logger sells a truckload of lumber for $100. His cost of production
is $80 and his profit is $20. Your assignment: Underline the number 20.
5. Teaching Math In 1990
A logger cuts down a beautiful forest because he is selfish and
inconsiderate and cares nothing for the habitat of animals or the
preservation of our woodlands. He does this so he can make a profit of
$20. What do you think of this way of making a living? Topic for class
participation after answering the question: How did the birds and
squirrels feel as the logger cut down their homes? (There are no wrong
answers.)
6. Teaching Math In 2006
Un hachero vende una carretada de maderapara $100. El costo de la
producciones es $80. Cuanto dinero ha hecho $20
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Friday 24 August 2007
From: JediHomer
As a follow up:
CITY OF NEW YORK HIGH SCHOOL
MATH PROFICIENCY EXAM
NAME____________________
GANG/CREW NAME______________ Crib _________________
1. Ramone has an AK-47 with a 30 round clip. He usually misses 6 out of
every 10 shots and he uses 13 rounds per drive-by shooting. How many
drive-by shootings can Ramone attempt before he has to reload?
2. Otis has 2 ounces of cocaine. If he sells an 8 ball to Antonio for $320
and 2 grams to Juan for $85 per gram, what is the street value of the rest
of his hold?
3. Rufus pimps 3 ho's. If the price is $85 per trick, how many tricks per
day must each ho turn to support Rufus's $800 per day crack habit?
4. Dave wants to cut the pound of cocaine he bought for $40,000 to make 20%
profit. How many ounce bags will he need to make to obtain the 20% profit?
5. Desmond gets $200 for a stolen BMW, $150 for stealing a Corvette, and
$100 for a 4x4. If he steals 1 BMW, 2 Corvettes and 3 4x4's, how many more
Corvettes must he steal to have $900?
6. Tom got 6 years for murder. He also got $10,000 for the hit. If his
common-law wife spends $100 of his hit money per month, how much money will
be left when he gets out?
7. If an average can of spray paint covers 22 square feet and the average
letter is 3 square feet, how many letters can be sprayed with 3 eight ounce
cans of spray paint with 20% paint left over?
8. Tyrone knocked up 3 girls in the gang. There are 27 girls in his gang.
What is the exact percentage of girls Ty rone knocked up?
9. LaSheena is a lookout for the gang. LaSheena also has a Boa Constrictor
that eats 3 small rats per week at a cost of $5 per rat. If LaSheena makes
$700 week as a lookout, how many weeks can she feed the Boa on one week's
income?
10. Marvin steals Joe's skateboard. As Marvin skates away at 15 mph, Joe
loads his 357 Magnum. If it takes Joe 20 seconds to load his piece, how far
away will Marvin be when he gets whacked?
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