Question
A survey at a children's library showed that \( 42 \% \) of children chose mysteries as their favorite category of books. A total of 900 children took the survey. How many children chose mysteries? 408 328 398 378
Ask by Montgomery Rodriquez. in Brazil
Mar 22,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
378 crianças escolheram mistérios.
Solution
Para resolver, precisamos calcular \( 42\% \) de 900:
1. Converter a porcentagem em fração decimal:
\[
42\% = 0,42
\]
2. Multiplicar o total de crianças pela fração decimal:
\[
0,42 \times 900 = 378
\]
Portanto, \( 378 \) crianças escolheram mistérios.
Answered by UpStudy AI and reviewed by a Professional Tutor
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Simplify this solution Extra Insights
To find out how many children chose mysteries, you need to calculate \( 42 \% \) of \( 900 \). This can be done by multiplying \( 900 \) by \( 0.42 \): \[ 900 \times 0.42 = 378 \] Thus, \( 378 \) children chose mysteries as their favorite category of books! For a quick tip: When calculating percentages, it can be handy to first convert the percentage into a decimal and then multiply. And a common mistake is forgetting to convert the percent; always remember \( 42\% \) becomes \( 0.42 \)!
