Ann had a bag of glass beads.She used half of the beads to make a necklace.She and her sister then use 1/6 and 1/7 of the original number of beads respectively to make two bracelets.If there are 16 glass beads left,find the original number of glass b
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Ann had a bag of glass beads.She used half of the beads to make a necklace.She and her sister then use 1/6 and 1/7 of the original number of beads respectively to make two bracelets.If there are 16 glass beads left,find the original number of glass beads.
安有一袋玻璃珠子.她用一半的珠子来做一个项链.她和她的妹妹然后使用1/6和1/7的原始数量分别的珠子使两个手镯.如果有16个玻璃珠留下,问最初的玻璃珠的数量.
16/(1-1/2-1/6-1/7)=84
安有一袋玻璃珠子。她用一半的珠子来做一个项链。然后她和她的妹妹分别使用原始数量的1/6和1/7的珠子做两个手镯。如果有16个玻璃珠留下,问最初的玻璃珠的数量。
解法如下:
设原来有x个珠子,
得X/2+X/6+X/7+16=X,
解得X=84个
Ann had a bag of glass beads.She used half of the beads to make a necklace.She and her sister then use 1/6 and 1/7 of the original number of beads respectively to make two bracelets.If there are 16 glass beads left,find the original number of glass b
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