一條數學~5分一條

2007-12-06 2:18 am

爸爸一日人工$650,比老闆減人工減到$572,爸爸每日人工減少了_____%?

回答 (9)

2007-12-06 2:24 am

✔ 最佳答案

(650-572)除650

(原本工資減實得工資)再除原本工資

答案是12%

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2007-12-06 3:07 am

正確答案是12%
公式如下:
[(650-572)/650]x 100%
= (78/650) x 100%
= 0.12 x 100%
= 12%

驗證如下:
650 x 12% = 78 (爸爸原本一日人工$650,12%,即78元)
650-78 = 572

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2007-12-06 2:40 am

爸爸每日人工減少了12%

參考: me

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2007-12-06 2:38 am

1 - 572 / 650 x 100%
=1 - 572 / 13 x 2%
=1 - 1144 / 13%
=1 - 88%
=100% - 88%
=12%

答：爸爸每日人工減少了12%

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2007-12-06 2:29 am

(650/650-572/650)X100%

=78/650X100%

=12%

希望能幫到啦喇!!!

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2007-12-06 2:27 am

好簡單
650-572/650 X 100%
=98/650 X 100%
~15.08%

Hope I can help you!!!!!

參考: MYSELF

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2007-12-06 2:26 am

〔(新值-原值) / 原值〕 *100% =百份率變化

〔 (572 - 650) / 650 〕 *100% = -12% (負數即減少了)

所以爸爸每日人工減少了12%

參考: me

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2007-12-06 2:25 am

650-572=78

答:78人

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2007-12-06 2:24 am

7.3%
希望幫到你！！

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