Answer:
135
Step-by-step explanation:
To find 15% of a number, we can find 10% first then 5%
- 10% of 900 is 90 (900 ÷ 10 = 90)
- 5% of 900 is 45 (half of 10% of 90)
- Therefore, 15% of 900 is 135
We can also turn 15% into a decimal by dividing 15 by 100: 15 ÷ 100 = 0.15 Now, we can treat 'of' as × and do 0.15 × 900 which is 135.
Hope this helps!
