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Algebra 1 : Percent of Change

Study concepts, example questions & explanations for Algebra 1

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Example Questions

Example Question #2831 : Algebra 1

Find the percent increase from $\small 46$ to .

Possible Answers:

$\small \approx48\%$

$\small \approx68\%$

$\small \approx58\%$

$\small \approx8\%$

Correct answer:

$\small \approx48\%$

Explanation:

For this type of problem we use this formula:

$\small \frac{difference}{original} \times 100$ .

"Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from $\small #$ ____ to ____.

In this problem our formula will be filled in as follows:

$\small \small \frac{68-46}{46} \times 100 = \frac{22}{46}\times 100 \approx48\%$ .

This is our percent increase.

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Example Question #41 : Percent Of Change

Find the percent increase from $\small 89$ to $\small 110$ .

Possible Answers:

$\small \approx 20\%$

$\small \approx 44\%$

$\small \approx 24\%$

$\small \approx 94\%$

Correct answer:

$\small \approx 24\%$

Explanation:

For this type of problem we use this formula:

$\small \frac{difference}{original} \times 100$ .

"Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from $\small #$ ____ to ____.

In this problem our formula will be filled in as follows:

$\small \frac{110-89}{89} \times 100 = \frac{21}{89}\times 100 \approx24\%$ .

This is our percent increase.

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Example Question #2831 : Algebra 1

Find the percent of increase from $\small 29$ to $\small 45$ .

Possible Answers:

$\small \approx35\%$

$\small \approx55\%$

$\small \approx59\%$

$\small \approx45\%$

Correct answer:

$\small \approx55\%$

Explanation:

For this type of problem we use this formula:

$\small \frac{difference}{original} \times 100$ .

"Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from $\small #$ ____ to ____.

In this problem our formula will be filled in as follows:

$\small \small \frac{45-29}{29} \times 100 = \frac{16}{29}\times 100 \approx55\%$ .

This is our percent increase.

Report an Error

Example Question #42 : Percent Of Change

Find the percent of increase from $\small 15$ to $\small 24$ .

Possible Answers:

$\small 40\%$

$\small 90\%$

$\small 60\%$

$\small 15\%$

Correct answer:

$\small 60\%$

Explanation:

For this type of problem we use this formula:

$\small \frac{difference}{original} \times 100$ .

"Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from $\small #$ ____ to ____.

In this problem our formula will be filled in as follows:

$\small \small \frac{24-15}{15} \times 100 = \frac{9}{15}\times 100 = 60\%$ .

This is our percent increase.

Report an Error

Example Question #43 : Percent Of Change

Find the percent of increase from $\small 45$ to .

Possible Answers:

$\small \approx90\%$

$\small \approx24\%$

$\small \approx2\%$

$\small \approx22\%$

Correct answer:

$\small \approx22\%$

Explanation:

For this type of problem we use this formula:

$\small \frac{difference}{original} \times 100$ .

"Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from $\small #$ ____ to ____.

In this problem our formula will be filled in as follows:

$\small \small \frac{55-45}{45} \times 100 = \frac{10}{45}\times 100 \approx22\%$ .

This is our percent increase.

Report an Error

Example Question #44 : Percent Of Change

Find the percent increase from $\small 13$ to $\small 15.$

Possible Answers:

$\small \approx35\%$

$\approx15\%$

$\small \approx152\%$

$\small \approx45\%$

Correct answer:

$\approx15\%$

Explanation:

For this type of problem we use this formula:

$\small \frac{difference}{original} \times 100$ .

"Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from $\small #$ ____ to ____.

In this problem our formula will be filled in as follows:

$\small \small \frac{15-13}{13} \times 100 = \frac{2}{13}\times 100 \approx15\%$ .

This is our percent increase.

Report an Error

Example Question #47 : How To Find The Percent Of Increase

Find the percent of increase from $\small 39$ to $\small 91$ .

Possible Answers:

$\small \approx113\%$

$\small \approx903\%$

$\small \approx133\%$

$\small \approx33\%$

Correct answer:

$\small \approx133\%$

Explanation:

For this type of problem we use this formula:

$\small \frac{difference}{original} \times 100$ .

"Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from $\small #$ ____ to ____.

In this problem our formula will be filled in as follows:

$\small \small \frac{91-39}{39} \times 100 = \frac{52}{39}\times 100 \approx133\%$ .

This is our percent increase.

Report an Error

Example Question #45 : Percent Of Change

Find the percent increase from $\small 50$ to $\small 60$ .

Possible Answers:

$\small 90\%$

$\small 35\%$

$\small 40\%$

$\small 20\%$

Correct answer:

$\small 20\%$

Explanation:

For this type of problem we use this formula:

$\small \frac{difference}{original} \times 100$ .

"Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from $\small #$ ____ to ____.

In this problem our formula will be filled in as follows:

$\small \frac{60-50}{50} \times 100 = \frac{10}{50}\times 100 =20\%$ .

This is our percent increase.

Report an Error

Example Question #46 : Percent Of Change

Find the percent increase from $\small 48$ to $\small 67$ .

Possible Answers:

$\small \approx 70\%$

$\small \approx 50\%$

$\small \approx 40\%$

$\small \approx 80\%$

Correct answer:

$\small \approx 40\%$

Explanation:

For this type of problem we use this formula:

$\small \frac{difference}{original} \times 100$ .

"Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from $\small #$ ____ to ____.

In this problem our formula will be filled in as follows:

$\small \small \frac{67-48}{50} \times 100 = \frac{19}{48}\times 100 \approx 40\%$ .

This is our percent increase.

Report an Error

Example Question #47 : Percent Of Change

Find the percent increase from $\small 48$ to $\small 60$ .

Possible Answers:

$\small 15\%$

$\small 20\%$

$\small 25\%$

$\small 55\%$

Correct answer:

$\small 25\%$

Explanation:

For this type of problem we use this formula:

$\small \frac{difference}{original} \times 100$ .

"Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from $\small #$ ____ to ____.

In this problem our formula will be filled in as follows:

$\small \frac{60-48}{48} \times 100 = \frac{12}{48}\times 100 =25\%$ .

This is our percent increase.

Report an Error

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Algebra 1 : Percent of Change

Study concepts, example questions & explanations for Algebra 1

All Algebra 1 Resources

Example Questions

Example Question #2831 : Algebra 1

Example Question #41 : Percent Of Change

Example Question #2831 : Algebra 1

Example Question #42 : Percent Of Change

Example Question #43 : Percent Of Change

Example Question #44 : Percent Of Change

Example Question #47 : How To Find The Percent Of Increase

Example Question #45 : Percent Of Change

Example Question #46 : Percent Of Change

Example Question #47 : Percent Of Change

All Algebra 1 Resources

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