P6升s.1數學暑期作業4題. 急~10 點 !!!!!
1.if A is y℅ more than B , then B is y℅ less than A. [ CORRECT / INCORRECT ]
2.Cherry put 4 marbles into a cylinder which is fully filled with water.Some water is then displaced into a rectangular container of length 5 cm and width 6 cm.When 8 more marbles are put into the cylinder, more water is displaced such that the water level in the rectangular container is raised from 1 cm to 3 cm. Find the volume of a marble.
Hint:The total volume of the marbles is equal to the volume of water displaced.
3.January;300 Februaury;300 March;200 April; 500 May;600 June;800
describe the trend of the electricity bill in the past 6 months.Suggest a reason why the electricity bill shows such a trend. [ 如果我想話.過去6個月.電費一直上升.係因為4.5.6月快到夏天.所以會比較熱.mr . Lee 一家開多左冷氣.得唔得?!`教下我英文點寫 ?!`]
4.the marked price of a jacket is$500.If the discount percentage is 20% , what is the selling price?
- 10 years agoFavorite Answer
if A is y℅ more than B,b is ((a-b)/a)*100%
the bill keep stable in january to february and fall a little in march,then the bill raise
rapidly from april to june.it is because mr.lee have to switch on the air-con in summer.
2010-08-27 19:35:16 補充：