Chapter SH, Problem 7.3MPS

To determine

To calculate: To find the percent of students with blue eyes

Answer to Problem 7.3MPS

  $37.5\%$ of students have blue eyes

Explanation of Solution

Given information: Table showing the eye colors of the students in Mr. L’s class

Eye Color	Number of students
Blue	9
Brown	5
green	6
hazel	4

Formula Used:

Percent proportion is an equation where a percent is equal to an equivalent ratio

Formula for percent proportion is

  $\frac{amount}{base}=\frac{percent}{100}$

Calculation:

Given that tableshowing the eye colors of the students in Mr. L’s class

Eye Color	Number of students
Blue	9
Brown	5
green	6
hazel	4

Total number of students $=9+5+6+4=24$

Number of student with blue eyes $=9$

Let the percent be $x$

Using percent proportion,

  $\frac{amount}{base}=\frac{percent}{100}$

Substituting the values,

  $\begin{array}{l}\frac{9}{24}=\frac{x}{100}\\ x=\frac{9}{24}\times 100\\ x=\frac{3}{8}\times 100\\ x=0.375\times 100\\ x=37.5\%\end{array}$

Conclusion:

Hence, $37.5\%$ of students have blue eyes