Question

mr. adagio counted 30 students at last weeks art club meeting. this week, there are also drama auditions, so he expects 60% fewer students to attend. mr. adagio wants to know how many students to expect at this weeks art club meeting.
how can you find the number of students expected at this weeks meeting?
this weeks attendance = last weeks attendance ? 60% of ?

Explanation:

Step1: Identify operation for fewer students

Since attendance is 60% fewer, we subtract 60% of last week's attendance from last week's attendance. So the first blank is $-$.

Step2: Identify the value for percentage calculation

The 60% is calculated based on last week's attendance, so the second blank is "last week's attendance".

Step3: Calculate 60% of last week's attendance

$60\% \text{ of } 30 = 0.6 \times 30 = 18$

Step4: Compute this week's attendance

$\text{This week's attendance} = 30 - 18 = 12$

Answer:

1. The formula blanks are filled as: this week's attendance = last week's attendance $\boldsymbol{-}$ 60% of $\boldsymbol{\text{last week's attendance}}$
2. The number of expected students is $\boldsymbol{12}$