Question

question 1 (tek 6.3e)
a chemistry teacher divided 31.5 ounces of vinegar equally among all the students in a class. if each student got exactly 1.5 ounces of vinegar, how many students are in the class?
○21
○33
○30
○16

Explanation:

Step1: Set up the division formula

The number of students \(n=\frac{\text{total amount of vinegar}}{\text{amount per student}}\), so \(n = \frac{31.5}{1.5}\).

Step2: Perform the division

Multiply numerator and denominator by 10 to get \(\frac{31.5\times10}{1.5\times10}=\frac{315}{15}\).
Since \(315\div15 = 21\).

Answer:

21