close
標題:

F1 MATHS (20 FUN)

發問:

1) Last month, a computer wholesaler sold 1200 motherboards at $500 each. This month he has sold 200 pieces more, but the price has dropped by 17%. What is the percentage change? 列式+過程 PLZ,,, THX =]

最佳解答:

佢有冇話 (corr.to 3sig fig ) ? 2007-05-05 17:53:18 補充： 我都係 chace_lam個答案//if corr.to 3sig fig 就係 -3.17 % ! 2007-05-05 17:58:51 補充： 因為佢條題目冇講 decrease percentage ...so..成條式應該係..the new price of the motherboards :500 * (1-17%) =$415 the percentage change :$415 * (1200 200) - (1200* $500) / (1200* $500) 再乘 100 %581000-600000/600000 再乘 100 %= - 3.17 % (corr.to 3sig fig )

其他解答:

 

此文章來自奇摩知識+如有不便請留言告知

9B623C59CC17F40C
arrow
arrow
    文章標籤
    成條式 有哪些 零件 著作 植物
    全站熱搜

    kfsdgte 發表在 痞客邦 留言(0) 人氣()

    E-mail轉寄