I thought you all might be interested in this:
We were talking about ratios and the number φ (phi), the Golden Ratio, last week. We also talked about how deeply it's tied to our unconscious appreciation of things that are beautiful. I came across this 7 minute video (below) that tells something of the story behind the construction of The Parthenon. You can also read on wikipedia about how φ was integrated into it's design. You can also browse this site which is dedicated to exploring all things about the Golden Ratio.
The Parthenon
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It's meeeeeeeee. . . againnnn
In this section of Math, I found quite a lot of things interesting. However, one thing that has stuck with me was how you calculate the HST in the Atlantic Provinces.
Step 1: Look at the question. Does it have any Discounts or Other Items (More than one)
What is the total cost, including tax, of the socks and underwear, if the socks are $8.49 and the underwear is $14.88? There is a 20% discount on the items as well.
Step 2: If there are more than one item, add the items together. (If not, ignore this step)
$8.49 + $14.88 = $23.37
Step 3: If there is a discount, multiply the decimal form of the discount by the cost of the item(s), then subtract it from the cost of the item(s). (If no discount, ignore this step)
20% = 20 / 100 = 0.20
$23.37 x 0.20 = $4.67
$23.37 - $4.67 = $18.70
Step 4: Take the Sale Price (Cost after Discount) and multiply it by the decimal form of the HST.
14% = 14 / 100 = 0.14
$18.70 x 0.14 = $2.62
Step 5: Take the Tax and the Sale Price and add the two together. It will give you the Total Cost of the item.
$18.70 + $2.62 = $21.32
Step 6: You are completely done the question and you got very pricey socks and underwear ;) (But Holy God, that must be some pretty good socks and underwear)
Remember that if you are finding PST and GST, DON'T combine the two taxes when you calculate them. LEAVE THEM SEPARATED OR CONCEQUENCES WILL BE WAITING.
Remember to study and then we can all have a Britney Spears party =O If you don't study, cellulite will haunt you forever =OO
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Consumer Decisions
I learned a lot in this unit. This unit helped me gained more knowledge about taxes and sales. In real life, my mom asked me how much this jacket at GAP was. I told her the right amount with the 25% off sale and the PST and GST. When we went to the cashier, I was right. =) I felt so proud of myself.
Before I never knew about how to do all these taxes and sales. But I'm so happy I learned about it. This unit really helps me a lot especially in real life.
We learned about finding the unit price of one. Like for example,
At a fruit and vegetable stand, a dozen apples sells for $2.50. What is the price of one apple?
$2.50 / 12 = $0.21
So the unit price of one apple is $0.21
Then we learned about GST, PST, HST.
GST stands for Goods and Services Tax
PST stands for Provincial Sales Tax
HST stands for Harmonized Sales Tax. Harmonized Sales Tax is a combination of federal and provincial tax.
Here is an example of how to find GST and PST.
A customer purchases a new suit. The price of the suit is $285.00. What is the cost to the customer after GST and PST are added? The suit is purchased in Ontario.
Price of suit is $285.00
Now find GST and PST by converting the percent to decimal place. A reminder that PST in Ontario is 8%
GST - 6% / 100 = 0.06
PST - 8% / 100 = 0.08
Now multiply the price of the suit with the GST and then PST.
GST - $285.00 * 0.06 = $17.10
PST - $285.00 * 0.08 = $22.80
Now add the taxes together.
$17.10 + $22.80 = $39.90
Now add the price of the suit and the total taxes.
$285.00 + $39.90 = $ 324.90
And now, your done =)
Now here is an example of calculating HST.
Paul went to an electronic store and bought a CD player advertized at $450.00, a set of speakers at $235.00, and a portable telephone at $189.00. How much did he have to pay altogether including taxes? He bought these items in Nova Scotia.
Add all the prices together first.
$450.00 + $235.00 + $189.00 = $874.00
Now find HST of the total price of all the items that is being bought. HST in Nova Scotia is 14%
HST - $874.00 * 0.14 = $122.36
Add the total price of the items being bought and HST.
$874.00 + $122.36 = $996.36
Et Votre Fait! Yay! ( And Your Done! Yay! ) Hehe.
We also learned about the golden ratio.
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Today we talked about the Golden Ratio. We talked about how are body and alot of other things will work this way.For example If you measure your arm, and then your elbow and down and you divide the long ways by the short way you will get the number 1.618 (That is the Golden Ratio) and if it`s not 1.618 it will be very close.
After we talked about that we went to a question about sales and rate savings.Here's an example.
Corey buys a jacket on sale for $53.99. Before the sale the jacket cost $63.89. What is her percent rate of savings?
1. First you have to divide the sale price by the original price.
sale price/original price = $53.99/$63.89 = 0.8450
2. Then you round it off.
0.8450 rounded off to 0.85 = 85%
3. Then minus the percent from 100% and you find the rate of savings
85% - 100% = 15%
Corey got a 15% rate of savings.
Here is another example of something we did....
new/old
1 Shirt $16.99/$18.99 = 89% 89% - 100% = 11% off
2 Pairs of socks $2.67/$3.29 = 81% 81% - 100% = 19% off
1 Sweater $19.99/$25.50 = 78% 78% - 100% = 22% off
After That we has to find out how much the tax would be for all of these items in total.
$16.99 + $2.67 + $2.67 + $19.99 = $42.32 - total items
GST - 0.06 x $42.32 = $2.54
PST - 0.07 x $42.32 = $2.96
$42.32 + $2.54 +$2.96 = $47.82 - total incl. taxes**
We also talked about ratio's and how they could compare a part:part or a part:whole
The Next Scribe Will Be Serena After Mary.
** And There`s Going To Be a Test,Friday December 7th**
Good Luck To Everybody!!.
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