| 
 
 
| Question 1144592:  A company distributes college logo sweatshirts and sells them for $45 each. The total cost function is linear, and the total cost for 80 sweatshirts is $3912, whereas the total cost for 240 sweatshirts is $6952.
 what is the equation for the revenue function?
 What is the equation for the total cost function?
 Find the break even quantity.
 Answer by ankor@dixie-net.com(22740)
      (Show Source): 
You can put this solution on YOUR website! A company distributes college logo sweatshirts and sells them for $45 each. let x = no. sold
 then the revenue function
 R(x) = 45x
 :
 The total cost function is linear, and the total cost for 80 sweatshirts is $3912, whereas the total cost for 240 sweatshirts is $6952.
 let b = the fixed cost of making the shirts
 240x + b = 6952
 80x + b = 3912
 ------------------subtraction eliminates b, find x
 160x + 0 = 3040
 x = 3040/16
 x = $19 the cost to make each shirt
 :
 Find the fixed cost
 80(19) + b = 3912
 b = 3912 - 1520
 b = $2392 is the fixed cost.
 :
 what is the equation for the revenue function?:
 R(x) = 45x
 What is the equation for the total cost function?
 C(x) = 19x + 2392
 Find the break even quantity.
 Rev = cost
 45x = 19x + 2392
 45x - 19x = 2392
 26x = 2392
 x = 2392/26
 x = 92 shirts to break even
 :
 :
 Check this with 92 shirts
 92(45) = $4140
 92(19) + 2392 = $4140 also
 | 
  
 | 
 |