Question

this weeks attendance = last weeks attendance - 60% of last weeks attendance
how can you find the expected decrease in attendance?
last weeks attendance: 30 students
60% of last weeks attendance = ? ? 30
this weeks attendance: ?
expected decrease: 60% of 30 students

Explanation:

Step1: Convert percentage to decimal

$60\% = \frac{60}{100} = 0.6$

Step2: Calculate expected decrease

$\text{Expected decrease} = 0.6 \times 30$

Step3: Calculate this week's attendance

$\text{This week's attendance} = 30 - (0.6 \times 30)$

Answer:

60% of last week's attendance = $\boldsymbol{0.6}$ $\boldsymbol{\times}$ 30
Expected decrease: 18 students
This week's attendance: 12 students