Question 102461: 48. Business and finance. When x number of units are sold, the price of each unit (in P= x 75
dollars) is given by . Find the unit price when the following quantities
are sold: 2, 7, 9, 11.
Answer by JP(22)   (Show Source):
You can put this solution on YOUR website! First you must set up a function.
P(x)=$75x, where x is equal to the number of units sold
A.)First you have 2units sold. Your function is P(2)=75(2)
P(2)=$150, so when 2 units are sold, $150 is the unit price.
B.)For 7 units sold. P(7)=75(7)
P(7)=$525
C.) For 9 units sold. P(9)=75(9)
P(9)=$675
D.) For 11 units sold. P(11)=75(11)
P(11)=$825
To verify the solutions
unitprice(x)=75(x)
unitpricex=75x
x=75x/unitprice
x=individual unit price
150x=75(150)
150x=11250
x=11250/150
x=75 or the price of the individual unit price.
525x=75(525)
525x=39375
x=39375/525
x=75
675x=75(675)
675x=50625
x=50625/675
x=75
825x=75(825)
825x=61875
x=61875/825
x=75
Hope this helps....let me know if you need more info.
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