Chapter 9.8, Problem 30PPS

To determine

To write a equation to model total cost of flyers.

Answer to Problem 30PPS

Total cost function $f(x)=0.15x+25$

Cost for 30 flyers is $29.5

Explanation of Solution

Given information:

Set up fee is $25

15cents for each flyer

Calculation:

Linear function

  $f(x)=mx+c$

where

  $f(x)$is total total cost

m is price of each flyer

x is number of flyers

c is set up cost 15 cents in $

$ 0.15

  $f(x)=0.15x+25$

Total cost for 30 flyers

  $x=30$

  $f(30)=0.15(30)+25$

On solving,

  $f(30)=4.5+25$

On solving,

  $f(30)=\$29.5$