- A percent is an equivalent fraction out of 100
- 100%- all, whole, everything, 40/40, 100/100
- 10%- 10/100
- 50%- half, part/whole
- 25%- quarter, 25/100
- 1%- out of 100, 1/100
- % = /100
- 205/100 is an improper fraction or top heavy
- The reason why 100 is used is because it is an easy number to work with
- In french, the word percent is split into two words, "per" being "out of" and "cent" being "100"
Representing Percents on a Grid:
- A) 180%
- B) 0.6%
- C) 12 3/8
Converting Percents:
- A ratio statement out of 1
Fraction - Decimal - Percent
- 3/4: 3/4= 0.075/1(0.075/1 x 100) = 7.5/100 or 7.5%
Decimal - Percent - Fraction
- 0.0064/1 = 0.64/100 or 64% 0.0064/10 000 = 64/10000 (Use place holder - Simplify)
32//5000 -> 16/2500 -> 8/1250 -> 4/625
Percents - Decimal - Fraction
- 750%/100(/100) = 7.5/1 7 5/10 or 7 1/2
- PERCENT OF A NUMBER:
- Percent of a number is the next part of this exercise. Show how you could solve the following using mental math and calculator.
20% of 60
20 ÷ 100 = 0.2
0.2 x 60 = 12
20% of 60 = 12
0.1% of 40
0.1 ÷ 100 = 0.001
0.001 x 40 = 0.04
0.1% of 60 = 0.04
250% of 400
250 ÷ 100 = 2.5
2.5 x 400 = 1000
250% of 400 = 1000
- COMBINING PERCENTS:
- Combining Percents is the last part of this post. You need to explain Discount, Sale Price and Total Price with taxes. I also need you to explain what is a better deal 50% off or 25% off of an already reduced price of 25%. This can be done using the following questions,
- How to find the SALE PRICE: Take the regular price and subtract it by the discount.
-Sale Price: What you pay
- How to find the DISCOUNT: Take the percent of the discount and divide it by 100 and then multiply it by the regular price.
- Total Price Including Taxes: If the tax is 13%, you need to add 13% to the sale price which is 100%.
13+100=113(Total price+Taxes)
113÷100=1.13
1.3 x 147.99 = 192.387 or 192.39
Add 13 and 100 together which is the tax added to the total price. Then divide 113 by 100 and multiply by the total price(147.99)
-Discount: What you save
25% off of an already reduced price of 25% and 50% off are both good deals because 25% + 25% is the equivalent of 50%
e.g. 25 ÷ 100 = 0.25
0.25 x 250 = 62.5
= 125
25 ÷ 100 = 0.25 250 - 125 = 125
0.25 x 250 = 62.5
0.25 x 250 = 62.5
= 125
25 ÷ 100 = 0.25 250 - 125 = 125
0.25 x 250 = 62.5
50 ÷ 100 = 0.50
0.50 x 250 = 125 = 125
250 - 125 = 125
0.50 x 250 = 125 = 125
250 - 125 = 125
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