SOLUTION: a woman bought some large frames for $14 each and some small frames for $7 each at a closeout sale. if sale bought 27 frames for $245, find how many of each type she bought
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Question 1041234: a woman bought some large frames for $14 each and some small frames for $7 each at a closeout sale. if sale bought 27 frames for $245, find how many of each type she bought
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of large frames she bought
Let = number of small frames she bought
--------------------------------------
(1)
(2)
-----------------------
There are 2 equations and 2 unknowns
so it's solvable
---------------
Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)
-----------------------
and
(1)
(1)
(1)
------------------
She bought 8 large frames and 19 small frames
------------------
check:
(2)
(2)
(2)
(2)
OK
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