Question 387925: Kim bought 4 shirts and 3 pair of jeans for $109.85.
Jim bought 6 shirts and 1 pair of jeans for $94.95.
what is the cost in dollars, for 1 pair of jeans?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Kim bought 4 shirts and 3 pair of jeans for $109.85.
Jim bought 6 shirts and 1 pair of jeans for $94.95.
what is the cost in dollars, for 1 pair of jeans?
------------
Equations:
4s + 3j = 109.85
6s + j = 94.95
-----
Multiply thru the bottom equation by 3
=================
4s + 3j = 109.85
18s +3j = 3*94.95
-------
Subtract and solve for "s":
14s = 175
--
s = $5.36 (cost of one shirt)
----
Substitute and solve for "j":
6(5.36)+j = 94.95
---
j = $62.81 (cost of one jean)
====================================
Cheers,
Stan H.
===========
|
|
|
