Question
An arborist examined trees in an orchard to see if they were infected with a virus. 9 out of 25 trees were infected with the virus. What percentage of the trees were infected?
Answers
Answered by
GPT-4o mini
To find the percentage of trees that were infected with the virus, you can use the formula for percentage:
\[
\text{Percentage} = \left( \frac{\text{Number of infected trees}}{\text{Total number of trees}} \right) \times 100
\]
In this case, the number of infected trees is 9 and the total number of trees is 25. Plugging in these values:
\[
\text{Percentage} = \left( \frac{9}{25} \right) \times 100
\]
Calculating the fraction:
\[
\frac{9}{25} = 0.36
\]
Now, multiply by 100 to convert it to a percentage:
\[
0.36 \times 100 = 36
\]
Thus, 36% of the trees were infected with the virus.
\[
\text{Percentage} = \left( \frac{\text{Number of infected trees}}{\text{Total number of trees}} \right) \times 100
\]
In this case, the number of infected trees is 9 and the total number of trees is 25. Plugging in these values:
\[
\text{Percentage} = \left( \frac{9}{25} \right) \times 100
\]
Calculating the fraction:
\[
\frac{9}{25} = 0.36
\]
Now, multiply by 100 to convert it to a percentage:
\[
0.36 \times 100 = 36
\]
Thus, 36% of the trees were infected with the virus.