You convert the percentage into a fraction, multiply this by the sale price, then subtract by this number. Example: Price is $20.00 and the markdown is 20%. First make 20% a decimal by dividing by 100 to get 0.2. Multiply 0.2 by 20 to get 4. Now take 4 and subtract it from 20 to get 16. So a markdown of 20% of a $20.00 item is $16.00
This is how I would solve it, I would act as if there were 36 people in the class. 36÷6=6×5=30 30÷3=10×2=20 20/36=10/18=5/9 You could also try another number such as 24; 24×(5÷6)=20 20×(2/3)=13.3(3 repeating) 13.333/24=5/9 5/9 people have dogs. Tell me if this helps.
