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A local Pennysaver charges $11 for each of the first three lines of a classified ad, and $5 for each
additional line.
a) What is the price of a two-line ad?
b) What is the price of a five-line ad?
c) If x is the number of lines in the ad, express the cost c(x) of the ad as a piecewise function.

Sagot :

ellicampos6
What’s the question?
Douglas9510

Step-by-step explanation:

a) $11 = 3 lines of a classified ad

$x = 2 limes of a classified ad

cross multiply

3x = 22

divide by the coefficient of x

which is 3

3x/3 = 22/3

x = 7.33 approximately 7

x = 7.

b) $11 = 3 lines of a classified ad

$x = 5 lines of a classified ad

cross multiply

3x = 55

diviee by the coefficient of x

which is 3

3x/3 = 55/3

x =18.33 approximately 18

x =18.

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