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2 years ago

If 21 out of 100 patients have high cholesterol, what percent of the patient population has high cholesterol?

Mathematics

2 answers:

erma4kov [3.2K]2 years ago

6 0

Answer:

21%

Step-by-step explanation:

Percents are always out of 100. If it says a # out of 100, the percentage is always the number that it is mentioning.

For example,

51 out of 100 is 51%

79 out of 100 is 79%

makkiz [27]2 years ago

5 0

Answer: 21%

Step-by-step explanation:

Percent by definition is based on "out of 100." If 21 out of 100 has high cholesterol, then the percentage is 21%

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Step-by-step explanation:

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2 years ago

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2 years ago

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2 years ago

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After a storm, 135 trees out of 180 were left standing. What is the percentage loss of the number of trees?

beks73 [17]

Answer:

Percentage loss of the number of trees is $25\%$ .

Step-by-step explanation:

Given: After a storm, $135$ trees out of $180$ were left standing.

To find: What is the percentage loss of the number of trees?

Solution:

We have,

Total number of trees $=180$

Number of trees left standing $=135$

Therefore, loss of trees $=180-135=45$

We now that $\text {Loss\%}=\frac{\text{Number of trees left}}{\text{Total number of trees}}\times 100 \%$

$\implies \text {Loss\%}=\frac{45}{180}\times 100 \%$

$\implies \text {Loss\%}=\frac{450}{18} \%$

$\implies \text {Loss\%}=25 \%$

Hence, the percentage loss of the number of trees is $25\%$ .

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3 years ago