If I have $50 and donated 60% to charity, how much money did I donate?

Subject | Subject

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What number is 60% of 50?

Calculations:

​ 60% x 50

=​ 0.6 x 50

= 30​

Subject | Subject

Some text here about the topic of discussion

What is missing in the question:

"What number is 60% of 50?"

Answer: Part

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60% = percent

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50 = whole​

Subject | Subject

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If c = part, how should you write the sentence as an equation?

"What number is 60% of 50?"

Since the part is unknown, we can solve by multiplying the converted percent by the whole to find the part.

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a = 0.6 x 50​

Subject | Subject

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Using what you learned from the previous slides,

what is What is the relationship between the whole, part, and percent?

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The part is equal to the converted percent multiplied by the whole.

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Subject | Subject

"The percent multiplied by the whole is the part"

PERCENT EQUATION

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p * w = a

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p = percent​ (decimal)

w = whole

a = part

Subject | Subject

"The percent multiplied by the whole is the part"

EXAMPLE :

Finding the PART(a)​ using the Percent Equation

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Solution ​

p * w = a​

0.16 * 25 = a

4 = a​

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​Answer: a = 4

Subject | Subject

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What number is 16% of 25?

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a = ?

w =​ 25

p = 16% = 0.16

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EXAMPLE :

Finding the PERCENT(p)​ using the Percent Equation

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Solution ​

p * w = a​

p * 20 = 7

20 20​

​p = 0.35 = 35%

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Subject | Subject

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What percent is 7 of 20?

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a = 7

w =​ 20

p = ?

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EXAMPLE :

Finding the WHOLE(w)​ using the Percent Equation

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Solution ​

p * w = a​

0.22 * w = 66

0.22​ 0.22

​w = 300

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Subject | Subject

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66 is 22% of what number?

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a = 66

w =​ ?

p = 22% = 0.22

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