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F.1數學3條方程 (長細例式)急~~ 15點
17) In the first stage of a fitness proramme,Mary lost 2 kg and her weight went down to 48 kg.(a) What is the percentage decrease in her weigth?(bMary lost another 1.2 kg in the second stage.What is the percentage decreas e in her weigth in the second stage?18) Rebecca spent $12000 on buying the... 顯示更多 17) In the first stage of a fitness proramme,Mary lost 2 kg and her weight went down to 48 kg. (a) What is the percentage decrease in her weigth? (bMary lost another 1.2 kg in the second stage.What is the percentage decreas e in her weigth in the second stage? 18) Rebecca spent $12000 on buying the shares of a company at the beginning of February. (a) After a month , the value of the shares increased by 12% What was the value of the shares at the beginning of March? (b) At the beginnng of April,the value of he shares was 30% less than that at the beginning of March. what was the value of the shares at the beginning of April? 21) the scores of team A and team B were the same st the beginning if a competition. After a round,the score of team A increased by 80,and that of team B increased to 240. (a) If the score of team A increased by 40%,find the scores if the two teams at the beginning. (b) Find the percentage increase in score of team B.
最佳解答:
17a)2/(48+2)=4% 17b)1.2/48=2.5% 18a)12000(1+12%)=13440 18b)13440(1-30%)=9408 21a)80/(40%)=200 21b)(240/200)-1=0.2=20%
其他解答:
17a)2/(48+2)=4% 17b)1.2/48=2.5% 18a)12000(1+12%)=13440 18b)13440(1-30%)=9408 21a)80/(40%)=200 21b)(240/200)-1=0.2=20% hope I can help you ^_^ ^_^ ^_^ ^_^
F.1數學3條方程 (長細例式)急~~ 15點
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發問:17) In the first stage of a fitness proramme,Mary lost 2 kg and her weight went down to 48 kg.(a) What is the percentage decrease in her weigth?(bMary lost another 1.2 kg in the second stage.What is the percentage decreas e in her weigth in the second stage?18) Rebecca spent $12000 on buying the... 顯示更多 17) In the first stage of a fitness proramme,Mary lost 2 kg and her weight went down to 48 kg. (a) What is the percentage decrease in her weigth? (bMary lost another 1.2 kg in the second stage.What is the percentage decreas e in her weigth in the second stage? 18) Rebecca spent $12000 on buying the shares of a company at the beginning of February. (a) After a month , the value of the shares increased by 12% What was the value of the shares at the beginning of March? (b) At the beginnng of April,the value of he shares was 30% less than that at the beginning of March. what was the value of the shares at the beginning of April? 21) the scores of team A and team B were the same st the beginning if a competition. After a round,the score of team A increased by 80,and that of team B increased to 240. (a) If the score of team A increased by 40%,find the scores if the two teams at the beginning. (b) Find the percentage increase in score of team B.
最佳解答:
17a)2/(48+2)=4% 17b)1.2/48=2.5% 18a)12000(1+12%)=13440 18b)13440(1-30%)=9408 21a)80/(40%)=200 21b)(240/200)-1=0.2=20%
其他解答:
17a)2/(48+2)=4% 17b)1.2/48=2.5% 18a)12000(1+12%)=13440 18b)13440(1-30%)=9408 21a)80/(40%)=200 21b)(240/200)-1=0.2=20% hope I can help you ^_^ ^_^ ^_^ ^_^
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