SOLUTION: If 10 pens and 15 pass of paper cost $26 and 5 of the same pens and 10 of the same pads of paper cost $16, find the cost of a pen and a pad
Algebra ->
Expressions-with-variables
-> SOLUTION: If 10 pens and 15 pass of paper cost $26 and 5 of the same pens and 10 of the same pads of paper cost $16, find the cost of a pen and a pad
Log On
Question 987634: If 10 pens and 15 pass of paper cost $26 and 5 of the same pens and 10 of the same pads of paper cost $16, find the cost of a pen and a pad Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = the cost of a pen
Let = the cost of a pad
----------------------------
(1)
(2)
------------------------
Multiply both sides of (2) by
and subtract (1) from (2)
(2)
(1)
------------------------
and
(2)
(2)
(2)
(2)
------------------
A pen costs $.80
A pad costs $1.20
-----------------
check:
(1)
(1)
(1)
(1)
OK
