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

2 Answers

4 votes
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%
User Hubert Bratek
by
7.3k points
1 vote
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
User Meji
by
8.2k points

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