Percent of an Amount 2

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Pre - Algebra

Percentages

Percent of an Amount

Percent of an Amount 2

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Question 1 of 4

1. Question
What is $22%$ of $600 \text(L)$ ?
- (132) $\text(L)$
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A percentage describes an amount’s relation to a whole. Dividing it by $100$ converts it into a fraction.

Method One

To get the percentage of an amount, simply solve for their product. Use fractions for easier computation.

$22%times600$

$=$ $22/100times600/1$ Convert to fraction form

$=$ $\frac{13200}{100}$

$=$ $\frac{132}{1}$ Simplify

$=$ $132$

Hence, $22%$ of $600 \text(litres)$ is $\underline{132\;\text{L}}$

$132$ $\text(L)$

Method Two

First, convert the percentage into a decimal by dividing the percentage value by $100$ .

Since the decimal is being divided by $100$ , simply move the decimal point $2$ places to the left.

Finally, multiply the decimal value by the whole amount.

$\text(Percentage)$ $=$ $0.22times600$

$=$ $132$

Hence, $22%$ of $600 \text(litres)$ is $\underline{132\;\text{L}}$

$132$ $\text(L)$
Question 2 of 4

2. Question
What is $14%$ of $97$ ?

Round your answer to two decimal places
- (13.58)
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A percentage describes an amount’s relation to a whole. Dividing it by $100$ converts it into a fraction.

Method One

To get the percentage of an amount, simply solve for their product. Use fractions for easier computation.

$14%times97$

$=$ $14/100times97/1$ Convert to fraction form

$=$ $\frac{1358}{100}$

Since the value is being divided by $100$ , simply move the decimal point $2$ places to the left.

Hence, $14%$ of $97$ is $\underline{13.58}$

$13.58$

Method Two

First, convert the percentage into a decimal by dividing the percentage value by $100$ .

Since the decimal is being divided by $100$ , simply move the decimal point $2$ places to the left.

Finally, multiply the decimal value by the whole amount.

$\text(Percentage)$ $=$ $0.14times97$

$=$ $13.58$

Hence, $14%$ of $97$ is $\underline{13.58}$

$13.58$
Question 3 of 4

3. Question
What is $12%$ of $50$ apples?
- (6) $\text(apples)$
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A percentage describes an amount’s relation to a whole. Dividing it by $100$ converts it into a fraction.

To get the percentage of an amount, simply solve for their product. Use fractions for easier computation.

$12%times50$

$=$ $12/100times50/1$ Convert to fraction form

$=$ $12/10times5/1$ Simplify

$=$ $\frac{60}{10}$

$=$ $\frac{6}{1}$ Simplify

$=$ $6$

Hence, $12%$ of $50$ apples is $\underline{6\;\text{apples}}$

$6$ $\text(apples)$
Question 4 of 4

4. Question
What is $350%$ of $9$ kilograms?
- (31.5) $\text(kilograms)$
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A percentage describes an amount’s relation to a whole. Dividing it by $100$ converts it into a fraction.

To get the percentage of an amount, simply solve for their product. Use fractions for easier computation.

$350%times9$

$=$ $350/100times9/1$ Convert to fraction form

$=$ $35/10times9/1$ Simplify

$=$ $\frac{315}{10}$

Since the value is being divided by $10$ , simply move the decimal point $1$ place to the left.

Hence, $350%$ of $9$ kilograms is $\underline{31.5\;\text{kilograms}}$

$31.5$ $\text(kilograms)$

Percent of an Amount 2

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Quiz summary

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1. Question

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2. Question

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3. Question

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4. Question

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Quizzes

	$22%times600$

$=$	$22/100times600/1$	Convert to fraction form

$=$	$\frac{13200}{100}$

$=$	$\frac{132}{1}$	Simplify

$=$	$132$

	$14%times97$

$=$	$14/100times97/1$	Convert to fraction form

$=$	$\frac{1358}{100}$

	$12%times50$

$=$	$12/100times50/1$	Convert to fraction form

$=$	$12/10times5/1$	Simplify

$=$	$\frac{60}{10}$

$=$	$\frac{6}{1}$	Simplify

$=$	$6$

	$350%times9$

$=$	$350/100times9/1$	Convert to fraction form

$=$	$35/10times9/1$	Simplify

$=$	$\frac{315}{10}$

$\text(Percentage)$	$=$	$0.14times97$
	$=$	$13.58$