21 is \( 24 \% \) of what number? If necessary, round your answer to the nearest hundredth, 0.88 1.14 5.04 87.5

To find out what number 21 is \( 24\% \) of, you can set up the equation \( 21 = 0.24 \times x \), where \( x \) is the unknown number. Rearranging gives you \( x = \frac{21}{0.24} \), which equals \( 87.5 \). So, 21 is \( 24\% \) of 87.5! Now, if you ever find yourself tackling percentages, one common mistake is multiplying instead of dividing. Always remember that to find the whole when given a part and a percentage, you need to divide the part by the percentage expressed as a decimal! This handy tip can save you from a mathematical rut.