some large frames for $14 each and some small frames for $4 each at a closeout sale. If she bought 16 frames for $114, find how many of each type she bought
1 answer:
Answer:
11 small frames, 5 large frames
Step-by-step explanation:
small: x
large : y
x + y = 16
4x + 14y = 114
Multiply first equation by 4 and subtract.
4x + 4y = 64
-(4x + 14y = 114)
-10y = -50
y = 5
Substitute y into the first equation.
x + 5 = 16
x = 11
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