# Yahoo奇摩 網頁搜尋

1. ### very urgent 聽日測驗la!

...to infinity problem 2. Let t be the number of seconds after they travel (t) (t+1)/2 + 5t = 261 t^2 + 11t - 522 = 0 (t+29) (t-18) = 0 t = 18 (because t &...

分類：科學及數學 > 數學 2006年11月06日

2. ### F.3 maths

...the time required be x minutes The distances travelled by both cars are 50 * x /60 and 70 * x/60 km respectively 50x/60 + 70x...

分類：科學及數學 > 數學 2009年12月13日

3. ### Maths problem~ hurry!!!!

...a certain distance, so that the distance travelled by the car is reduced...the husband met his wife on the road is T4 = T1 + y...husband took 15 minutes less to drive away from and15 minutes...

分類：科學及數學 > 數學 2009年08月30日

4. ### F2 maths liner equation

Question 1 let 'x' be the number of hours 35x+45x=400 80x=400 x=5 hours Question 2 Let 'x' be the 'tens' and 'y' be the 'units' 10x+y=4(x+y)+3 ....(1)27+10x+y=10y+x....(2) From (1) 10x+y=4(x+y)+310x+y=4x+4y+36x-3y=32x-y...

分類：科學及數學 > 數學 2012年12月06日

5. ### F.1 MATHS數學題.急thz 10MARKS

...45,find the value of a. ^ what is it 9 The travelling speed of car B is km/h more than 5/7(=7份之5) of the speed of car...

分類：科學及數學 > 數學 2011年10月26日