標題:
呢題數點做?"
發問:
呢題數點做?" ADD 1 to the double of a number and the result is 41.find the number. A.11 B.20 C.21 D.40
最佳解答:
B.20 let the number be x 2x +1 =41 2x=40 x=20
其他解答:
呢題數點做?"
發問:
呢題數點做?" ADD 1 to the double of a number and the result is 41.find the number. A.11 B.20 C.21 D.40
最佳解答:
B.20 let the number be x 2x +1 =41 2x=40 x=20
其他解答:
此文章來自奇摩知識+如有不便請留言告知
2x+1=41 2x+1-1=41-1 2x=40 2x/2=40/2 x=20 B.|||||let the number be x, 2x+1=41 2x=40 x=20 so, the answer is B|||||ADD 1 to the double of a number and the result is 41.find the number. D.40 2007-08-06 17:15:44 補充： 我講錯係: 條問題係話把1個數字乘2再加1答案係41 那果個數字係咩？即係x*2 1=41 x=(41-1)/2 x=20|||||中文: 把1個數字乘2再加1 答案係41 那個數字是.. B.20|||||B.20...................|||||ADD 1 to the double of a number and the result is 41.find the number. 係A.11|||||2*?+1 = 41 2*? = 41-1 2*? = 40 ? = 40/2 ?= 20 Answer is B
文章標籤
全站熱搜
留言列表
