SOLUTION: When x number of units are sold, the price of each unit (in dollars) is given by p = -x/2 + 75. Find the unit price when the following quantities are sold: 2,7,9,11.

Algebra ->  Expressions -> SOLUTION: When x number of units are sold, the price of each unit (in dollars) is given by p = -x/2 + 75. Find the unit price when the following quantities are sold: 2,7,9,11.      Log On


   

Question 68450: When x number of units are sold, the price of each unit (in dollars) is given by p = -x/2 + 75. Find the unit price when the following quantities are sold: 2,7,9,11.
Answer by funmath(2933) About Me  (Show Source):
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When x number of units are sold, the price of each unit (in dollars) is given by p = -x/2 + 75. Find the unit price when the following quantities are sold: 2,7,9,11.
Let x=2 and solve for p:
p=-%282%29%2F2%2B75
p=-1%2B75
p=74
When 2 units are sold, the unit price is $74.
Let x=7
p=-%287%29%2F2%2B75
p=-3.5%2B75
p=71.5
When 7 units are sold, the unit price is $71.50
Let x=9
p=-%289%29%2F2%2B75
p=-4.5%2B75
p=70.5
When 9 units are sold, the price is $70.50
Let x=11
p=-11%2F2%2B75
p=-5.5%2B75
p=69.5
When 11 units are sold, the price is $69.50
Happy Calculating!!!