Friday, February 5, 2010

Percent Faye 817

Draw a diogram to show how you could represesnt the cost of an item including with or without tax.

Question #1

$ | %
100 | 100
106 | 106

The item is $100 and if the tax is $6 it would be $106 so it is
$100 x 1.06 = $106

Question #3

Kyle says that a population increases of 15% on year follows by a increase of 10% the next year is the same as a population increases of %25 over two years. Is Kyle correct? Explain your reasoning.

Kyle is not correct the population would be greater if it increased by 15% then 10% If it increased 20% it would be less.
Increased by 15 then 10

Starts at 1000.


# | %
1000 | 100 x1.15
1150 | 115

1150 | 100 x1.10
1265 |110

Increased by 25%

# | %
1000| 100 x1.25
1250| 125


.... ??? O_o o_O

1 comment:

Jemineth873 said...

Your post was alright . You had ratio tables to show how you were solving wether kyle was right or wrong, it was just that because it wasnt really a picture it was misaligned which looks confusing at first. But i was getting where you were getting at , so good job .

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