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Karen bought some large frames for $15 each And some small frames for eight dollars each at a closeout sale. If she bought 22 frames for $239, find how many of each type she bought.

Sagot :

luana
[tex]x-number\ of\ large\ frames\\22-x-number\ of\ small\ frames\\\\15x+8(22-x)=239\\15x+176-8x=239\\15x-8x=239-176\\7x=63\ \ \ \ \ \ |:7\\x=9\\\\22-9=13\\\\Karen\ bought\ 9\ large\ frames\ and\ 13\ small.[/tex]
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