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Rewrite as percentages:

A) 20 out of 50
[tex]= \frac{20}{50} \times 100[/tex]

B) 16 out of 40
[tex]= \frac{16}{40} \times 100[/tex]

C) 2.80 out of 5
[tex]= \frac{2.80}{5} \times 100[/tex]

Answer :

Sure! Let's solve the problem step by step:

A) Converting 20 out of 50 to a percentage:

To find out what percentage 20 is out of 50, you can use the formula:

[tex]\[
\text{Percentage} = \left(\frac{\text{Part}}{\text{Whole}}\right) \times 100
\][/tex]

Here, the part is 20, and the whole is 50. Plug these numbers into the formula:

[tex]\[
\text{Percentage} = \left(\frac{20}{50}\right) \times 100 = 40\%
\][/tex]

So, 20 out of 50 is 40%.

B) Converting 16 out of 40 to a percentage:

Again, use the percentage formula:

[tex]\[
\text{Percentage} = \left(\frac{\text{Part}}{\text{Whole}}\right) \times 100
\][/tex]

Here, the part is 16, and the whole is 40. Plug these numbers into the formula:

[tex]\[
\text{Percentage} = \left(\frac{16}{40}\right) \times 100 = 40\%
\][/tex]

So, 16 out of 40 is 40%.

C) Interpreting and converting "R 2 · 80 of 5" to a percentage:

Assuming the expression "R 2 · 80 of 5" refers to calculating "80 out of 5" as a percentage:

Use the percentage formula:

[tex]\[
\text{Percentage} = \left(\frac{\text{Part}}{\text{Whole}}\right) \times 100
\][/tex]

Here, the part is 80, and the whole is 5. Plug these numbers into the formula:

[tex]\[
\text{Percentage} = \left(\frac{80}{5}\right) \times 100 = 1600\%
\][/tex]

So, "80 out of 5" is 1600%.

Thank you for allowing me to help with your math question! If you have any more questions, feel free to ask.

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Rewritten by : Barada