Question

The price of a shirt is 21.50 what is the discount if the shirt is now 17.20

Answer 1

the shirt is 20% off because= 21.50:17.20=100:x. 21.50•x=17.20•100. 21.50•x=1720. x=1720:21.50. x=80. and given the thought that 17,20 is 80% we subtract 80 from 100 and get 20%

Answer 2

The shirt is 20% off
If the starting price is 21.50 that’s the shirt at 100%
So to find the prevent 21.5/17.2 which gives you 1.25
100/1.25= 80
And 100-80 is 20 so the shirt is 20% off