Candice makes gift boxes during her free time.
She charges 40 cents for a triangular box, 50cents for a heart-shaped box and 60 centss for a cylindrical box.
Last sunday, she sold 16 diffierent types of gifts boxes and collected a total of $8.
How many of each type of box did she sell?
受不了,文科生太费脑。求各路高手指教。
该帖荣获当日十大第2,奖励楼主18分以及27华新币,时间:2016-04-27 22:00:01。
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