Problema Solution
The iPhone dropped $6.75 each month for 9 months. If the original price was $300, what is its price after 9 months?
Answer provided by our tutors
the original price was $300
after 1 month the original price is dropped $6.75 that is the new price is 300 - 6.75 = $293.25 the price after 1 month
after 2 months the original price is dropped 2*6.75 = $13.5 that is the new price is 300 - 13.5 = $186.5 the price after 2 months
after n months the original price is dropped n*6.75 that is the new price is 300 - n*6.75
after 9 months, n = 9
the new price after 9 months will be 300 - 9*6.75 = $239.25.