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A certain business is marketing its product and has
determined that, when it raised the selling price of its
product, its sales went down. The number of units
sold, P, is modeled by the equation P=1200-20s,
where s is the selling price, in dollars. Based on this
model, what is the decrease in selling price from 700
units sold to 900 units sold?
a) 5
b) 10
c) 15
d) 20


Sagot :

Answer:letra    b

Step-by-step explanation:

A function assigns the values. The decrease in selling price from 700 units sold to 900 units sold is 10. Thus, the correct option is B.

What is a Function?

A function assigns the value of each element of one set to the other specific element of another set.

Price of the unit when 900 units were sold,

P=1200-20s

900 = 1200 - 20s

s = 15

Price of the unit when 700 units were sold,

P=1200-20s

700 = 1200 - 20s

s = 25

Now, the difference in the selling price of the units is,

Difference = 25 - 15 = 10

Hence, the decrease in selling price from 700 units sold to 900 units sold is 10. Thus, the correct option is B.

Learn more about Function:

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