Marla Mae's Percent Post

~Welcome to my percent post~

Part 1. Describe how to find percents

• 50% -To find 50% of a number, what you have to do is take your number and divide it by 2.

• 10% - To find 10% of a number, what you have to do is take your number and divide it by 10.

• 1% - To find 1% of a number, what you have to do is take you number and divide it by 100.

• 25% - To find 25% of a number, what you have to do is take you number and divide it by 4.

• Definition of a percent - a word is a number out of a hundred. Percent it also another word for "hundredths".

Part 2. Representing Percents.

• 180%

• 12 3/4 %

• 0.7%

Part 3. Converting Decimals to Percents to Fractions.

• 26% 

Decimal - To convert a percent to a decimal, what you do is take your whole and divide it by 100.
26÷100=0.26

Fraction - To convert a percent into a fraction, what you do is take your whole number and turn it into a decimal and then look at the last digit and use that last digits place for your denominator.
26÷100=0.26
0.26 in this case the 6 is the last digit, it's in the hundredths place. So it would be 26/100)

• 7/10

Percent - To convert a fraction into a percent, what you do is take the numerator and divide it by the denominator. Then you take your decimal number and multiply it by 100. (Example 7/10, 7÷10=0.7 0.7 x 100 = 70)

Decimal - To convert a fraction to a decimal, what you do is take the numerator and divide it by the denominator and you should get a decimal for your answer. (Example, 7÷10=0.7)

• 0.024

Fraction - To convert a decimal to a fraction, what you do is look at the last number of the decimal and see what place value the last digit is. Which is 4, it's in the thousandths place value. 
0.024 thousands place, 24/1000.

Percent - To convert a decimal to a percent, what you do is multiply your number by 100.
0.024 x 100 = 2.4

Part 4.  Percent of a number is the next part of this exercise. Mental Math. How to find a percent of a number.

• 20% of 60

20% of 60
10% = 6
10% = 6
6+6=12  
20% of 60 is 12.

• 0.1% of 40

0.1% of 40
If you know that you're trying to find 1% of a number you divide it by 100. So since you're trying 0.1% of 40 you take 40 and divide it by a 1000.
40÷1000
=0.04 

• 250% of 400

100% is 400 so if you double it you get 200 and also figure out 50% you then add those two together 200 + 50 = 250 and you have your 250%. 
400÷100
= 4 x 250
= 1000

Part 5. Combining Percents.

Discount - The discount is how much you take away from your original price. The discount is also how much money you save.

Sale Price - The sale price is a new price on one item. So the original price has changed to a lower price, which is also the sale price. For example the original price was $50 and now it's $35.

Total Prices with Taxes - The total prices are what you pay for after you have calculated how much you need to pay, then the taxes are the percentages that you have to pay for additional money, which usually depends on where you live. After you add the total prices and taxes together, that's how much you need to pay.

Textbook Question - 
What is the sale price at each store? Which is a better buy?
Explain your thinking.
Store A: $350.99 is the original price and is 50% off one day only.
Store B: $375.00 is the original price and is 25% off one day followed by 25% off the reduced price the second day.

Store A -
One Day,
350.99÷2=175.50
Sale Price at store A is $175.50

Store B -
Day One,
375÷100
=3.75 x 25 
=93.75 
$375 - $93.75
= $281.25

Day Two,
281.25÷100
=2.81 x 25 
=70.25
$281.25 - $70.25
=$211

I think that Store A is a better buy because you would save more money than you would if you went to Store B. At Store A you would be saving $35.50.

A better deal would be taking 50% of the original price because you're mostly just taking the original price and just dividing it in half. I think 50% is better because if you used the 25% and then used the reduced price and took off another 25%, I think you'd be just making your sale price little by little.

That is my Percent Post.

Joyce's Percent Post

Welcome to my percent post

Part 1 - Describe how to find percents.

• 50% - take the number and divide it by 2
• 10% - take the number and divide it by 10
• 1% -  take the number and divide it by 1
• 25% - take the number and divide it by 4
• You also need to define what a percent is - a percent is another term for "hundredths".

Part 2 - You need to show 3 images showing Representing Percents. You choose the 3 but you could

• 180%

• 12 3/4 %

• 0.7%

Part 3 - You need to explain how to convert from Decimals to Percents to Fractions. Choose 3 sets

• 26%

Decimals:

To convert percents to decimals, divide the number by a hundred (26 ÷ 100 = 0.26)

Fractions:
To convert percents to fractions, you have to find the decimal. Once you have found the decimal, find the place value of the last digit after the decimal. (0.26 = 26/100)

• 7/10%

Decimals:

To convert fractions to decimals, divide the numerator and the denominator together. (7 ÷ 10 = 0.7)

Percents:

To convert fractions to decimals, multiply the decimal that you got by 100. (0.7 x 100 = 70)

• 0.024%

Fractions:

To convert decimals to fractions, find out the place value of the last digit of the decimal. (0.024 = 24/1000)

Percents:

To convert decimals to percents, multiply the decimal to 100. (0.024 x 100 = 2.4)

Part 4 - Percent of a number is the next part of this exercise. Show how you could solve the following using mental math and a calculator.

• 20% of 60

Mental Math:
10% of 60 - 60 ÷ 10 = 6
6 x 2 = 12

Calculator:
20% of 60 - 60 ÷ 100 = 0.6
0.6 x 20 = 12

• 0.1% of 40

Mental Math:

40 ÷ 1000 = 0.04

Calculator:

1% of 40 - 40 ÷ 100 = 0.4

0.4 x 0.1 = 0.04

• 250% of 400

Mental Math:

400 x 2 = 800 - 400 ÷ 2 = 200

200 + 800 = 1000

Calculator:
400 ÷ 100 = 4
4 x 250 = 1000

Part 5 - 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,

Discount - Discount is a deduction from the usual cost of a selling object.
Sale Price - Sale Price is the lower price for the object(s) you are buying.
Total Price With Taxes - The total price with taxes is the final cost of the objects(s) you are buying. Depending where you live, you have to pay extra.

QUESTION:
What is the final sale price at each store? Which is a better buy?
Store A: 50% off one day only - $249
Store B: 25% off one day followed by 25% off the reduced price the second day - $249

Store A:
50% divide by 2
249 ÷ 2 = $124.50

Store B:
25% divide by 4
249 ÷ 4 = 62.25
$249 - 62.25 = $186.75

Store A is better because you get to save more money. The difference is $62.25. Store A's discount was bigger making the price cheaper than Store B even if they discounted the price twice.