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Ainat [17]
3 years ago
12

In a sale, normal prices are reduced by 20%

Mathematics
1 answer:
deff fn [24]3 years ago
7 0
So sale price= normal price-dicount
sale price=100%-20%=80%
therfor
220=80%of origonal price
80%
percent means parts out of 100
80%=80/100=8/10
220=8/10of origonal price
multiply both sdies by 10
2200=8 of origoal price
divide by 8
2200/8=275

origonal price=275
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