百科知识

教育/科学

已知a/14:b/16=c/18:d/20=1.25求a:b:c?

2010-10-12 08:59:25X***
已知a/14:b/16=c/18:d/20=1.25 求a:b:c:d=? 已知a/14:b/16=c/18:d/20=1.25求a:b:c:d=?：a/14:b/16=c/18:d/20=5/4 8a:7b=5/4,32a=35b,?

最佳回答

  • a/14:b/16=c/18:d/20=5/4 8a:7b=5/4,32a=35b,a:b=35/32 10c:9d=5/4,40c=45d,c:d=9/8 a:b:c:d不确定 可能是求(a:b):(c:d)=(35/32):(9/8)=35/36 供参考
    2010-10-16 18:07:53
  • a/14:b/16=c/18:d/20 (16a)/(14b)=(20c)/(18d) (8a)/(7b)=(10c)/(9d) (a/b)/(c/d)=(10/9)/(8/7) a:b:c:d=10:9:8:7
    2010-10-12 09:48:50
    • 很赞哦！ (79)

    相关文章