Answer:
The answer is 36
Explanation:
Decrease number by 40% of its value.
Percentage decrease = 40% × 10
New value = 36
40 - Percentage decrease =
40 - (10% × 40) remove the parentheses
40 - 10% × 40
(1 - 10%) × 40
(100% - 10%) × 40 = change 40 to 100% because 40 is a hundred percent of 10%
90% × 40
90 ÷ 100 × 40 = 36