SOLUTION: If 15 sports jerseys cost $340 and 25 jerseys cost $460, write a linear equation that gives the cost C for j jerseys.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: If 15 sports jerseys cost $340 and 25 jerseys cost $460, write a linear equation that gives the cost C for j jerseys.      Log On

 

Hi,

(25,460)

(15,340)  m = 120/10 = 12

C = 12j + b

340 = 12*15 + b

340 = 300 + b

140 = b