SOLUTION: The video store has a basic charge for a 3-day rental and a different per-day late fee. Nate was one day late and paid $5.50 in all for his video. Gina was four days late and pai

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: The video store has a basic charge for a 3-day rental and a different per-day late fee. Nate was one day late and paid $5.50 in all for his video. Gina was four days late and pai      Log On


   

Question 407728: The video store has a basic charge for a 3-day rental and a different per-day late fee. Nate was one day late and paid $5.50 in all for his video. Gina was four days late and paid $10.00 in all for her video. What is the basic fee and the per-day late fee that the store charges?
Answer by graphmatics(170) About Me  (Show Source):
You can put this solution on YOUR website!
Let y = 3-day rental
and x = per-day late fee
then

(1)*x + y = 5.50
(4)*x + y = 10.00
Solved by pluggable solver: Linear System solver (using determinant)
Solve:
+system%28+%0D%0A++++1%5Cx+%2B+1%5Cy+=+5.5%2C%0D%0A++++4%5Cx+%2B+1%5Cy+=+10+%29%0D%0A++

Any system of equations:


has solution

or



(x=1.5, y=4}