Question

3. A textbook company keeps track of its daily cost for printing whole textbooks to different schools, but can only print up to 500 books a day. The daily cost (C) to print x number of textbooks is given by C(x) = 3.50x + 1200.
1. Using the function, determine one possible daily cost by evaluating the function for any input of your choice.
2. For what value of x does C(x) = 1900?
3. Interpret the statement C(20) = 1270.
4. Interpret the statement C(w) = p.
5. Explain whether C(40.5) = 1341.75 is correct and possible given the context of this problem.

Answer 1

1. c(500)=3.50(500)+1200
______________________________
500
c=3.50+1200
c=1203.50
(FOR NUMBER 1, YOU COULD ACTUALLY PUT ANY NUMBER IN THERE FOR THE TEXTBOOKS)

Answer 2

c(x)=1900
c(x)=3.50x+1200 original equation
3.50x+1200=1900
-1200 -1200
3.50x=700
/
3.50
x=700/3.50
c is x plugged in

Answer 3

use the same idea for 3

Answer 4

it says interpret so you have to guess for 4

Answer 5

5.
C(40.5) = 1341.75
c(40.5)=1341.75-(3.50(40.5)+1200)
///////////////////////////////
40.5
c=1341.75-(3.50+1200
c=1341.75-1203.5
c=138.25

Answer 6

so i guess its correct

Answer 7

is that enough or do u want me to do more?

Answer 8

That's great. Thank you so much!

Answer 9

ur welcome ;)

Answer 10

what grade r u in?

Answer 11

9th

Answer 12

ooh im in 8th

Answer 13

oh.. wow

Answer 14

yeah maybe its because i have honors math and 9th graders go over it

Answer 15

yeah probably

Answer 16

k c ya

Answer 17

thanks again bye