1.Express 20 – (x + 3y) in a word phrase.
A.Add the product of 3 and y to x, and then subtract the sum from 20.
B.Add the product of 3 and y to x, and then subtract the product from 20.
C.Subtract 20 from the sum of x and 3y.
D.Subtract the sum of x and 3y from 20.
可唔可以比埋解釋同比列式?THX~
S.1 Math 15點~
2012-07-26 5:14 am
回答 (2)
2012-07-26 5:44 am
✔ 最佳答案
答案:A解釋:因為PRODUCT即係積,即係3*y,ADD即係加,將個積加x,即係x+3y,SUBTRACT即係減,SUM即係和,係20度減和(個和即係x+3y),就等於20-(x+3y)
(因為吾知比列式係咩意思,所以無答到)
參考: ME
2012-07-26 9:35 pm
這是一個選擇題, 題意是 將 20 – (x + 3y) 用文字表達出來, 在給出的 A B C D 中選出一個正確的答案.
2012-07-26 14:42:03 補充：
答案是A
2012-07-26 14:42:03 補充：
答案是A
收錄日期: 2021-04-13 18:51:21
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