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.

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Question 71971: 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 Earlsdon(6103) About Me  (Show Source):
You can put this solution on YOUR website!
Solve p+=+%28-x%29%2F2+%2B+75 for x = 2, 7, 9, and 11
For x=2 substitute this value of x into the formula and solve for p.
p+=+%28-2%29%2F2+%2B+75 Simplify.
p+=+-1%2B75
p+=+74
For x=7 substitute this value of x into the formula and solve for p.
p+=+%28-7%29%2F2+%2B+75 Simplify.
p+=+-3.5%2B75
p+=+71.5
You should have the idea by now so try the others on your own.
If you still have trouble, please re-post.