水桶內既水佔左水桶容量既8分之7,用左5升之後,仲有16升.水 桶既容量是幾多升?
設水桶既容量係y升
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6年級,,數學方程!!!help~~~~~~~
2010-02-20 8:05 pm
回答 (4)
2010-02-20 8:20 pm
✔ 最佳答案
8分之7y - 5升 = 16升8分之7y - 5升+5升 = 16升+5升
8分之7y = 21升
8分之7y /8分之7 = 21升/8分之7
8分之7y x 7分之8 = 21升x 7分之8
y=24
2010-02-21 7:01 am
7y/8 -5=16
7y/8=16+5
7y/8=21
y=21x 8/7
y=24
7y/8=16+5
7y/8=21
y=21x 8/7
y=24
2010-02-20 8:10 pm
設水桶既容量係y升
7/8y-5 = 16
7/8y = 16+5
7/8y X 8/7 = 21X8/7
y = 24
水 桶既容量是24升?
http://s4.bitefight.tw/c.php?uid=70301
http://s4.bitefight.tw/c.php?uid=70301
http://s4.bitefight.tw/c.php?uid=70301
7/8y-5 = 16
7/8y = 16+5
7/8y X 8/7 = 21X8/7
y = 24
水 桶既容量是24升?
http://s4.bitefight.tw/c.php?uid=70301
http://s4.bitefight.tw/c.php?uid=70301
http://s4.bitefight.tw/c.php?uid=70301
2010-02-20 8:10 pm
設水桶既容量係y升
8分之7y - 5 = 16
8分之7y =16+5
8分之7y = 21
y = 21/8分之7
y =24升
8分之7y - 5 = 16
8分之7y =16+5
8分之7y = 21
y = 21/8分之7
y =24升
收錄日期: 2021-04-16 11:44:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100220000051KK00590