SOLUTION: Your friend can buy 20 chairs and two tables for 400 dollars your other friend can buy 8 chairs and 4 tables for 460 dollars. How much will it cost for 12 chairs and 3 tables.

Question 1011214: Your friend can buy 20 chairs and two tables for 400 dollars your other friend can buy 8 chairs and 4 tables for 460 dollars. How much will it cost for 12 chairs and 3 tables.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the cost of 1 chair in dollars
Let = the cost of 1 table in dollars
----------------------------------
given:
(1)
(2)
----------------------
Multiply both sides of (1) by
and subtract (2) from (1)
(1)
(2)
----------------------

(1)
(1)
(1)
(1)
------------------------
check:
(2)
(2)
(2)
and
(1)
(1)
(1)
(1)
----------------------
= cost of 12 chairs and 3 tables

$408.75 is the cost of 12 chairs and 3 tables
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