hi i'm having a problem to solve this problem
Express the sale price of a computer priced at p dollars with a 20% discount
can anyone explain what i need to do to solve it.
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you have a computer which is p dollars. P could be anything like 100 or 200 etc
now we want to find a new price which has a 20% discount.
New price = old price - % discount
New price = p - [ (20/100) * p ]
and alternative method is
1. state the problem : p is decreased by 20%
2. 20% = 20/100 = 0.2
3. 1-0.2 = 0.8
the new price which is discounted by 20% is = p*0.8