70.2/(?+1.06)=29.25

2007-09-28 7:39 am
?號=答案.答案是什麼?答案應該如何去求?方法是怎樣的?好急!!!!

回答 (5)

2007-09-28 7:42 am
✔ 最佳答案
70.2/(?+1.06)=29.25
?+1.06=70.2/29.25
?+1.06=2.4
?=2.4-1.06
?=1.34
2007-09-28 7:56 am
70.2/(?+1.06)=29.25

你要这样开始:

70.2 = 29.25 x ( y + 1.06) 我把?当成是 Y
70.2 = (29.25 x y) + (29.25 x 1.06)
70.2 = 29.25y + 31.005
70.2 - 31.005 = 29.25y
39.195 = 29.25y or 29.25y = 39.195
y = 39.195 / 29.25
y = 1.34
參考: 自己
2007-09-28 7:49 am
70.2/(?+1.06)=29.25
70.2=29.25(?+1.06)
70.2=29.25?+31.005
70.2-31.005=29.25?
29.25?=39.195
?=39.195/29.25
?=1.34

希望解答到你啦=]]
參考: 自己*
2007-09-28 7:48 am
70.2/(?+1.06)=29.25
?+1.06=70.2/29.25
?+1.06=2.4
?=2.4-1.06
?=1.34
參考: me
2007-09-28 7:44 am
step1: 70.2/(?+1.06)=29.25
step2: 70.2=29.25(?+1.06)
step3: 70.2=29.25?+31.005
step4: (70.2-31.005)/29.25=?
ans: ?=1.34


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