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• 點解 3 月27日 偉業 抗議 卿姐 霸權 過 范太 -
• 蘇good 2008年10月21日!!
• 我想要整6280主題個software@1@

 

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發問:

Find the percentage increase or decrease in each of the following.1a.Increase 32 by 8 1b.Decrease 50 by 71c.Increase x by 1/8 of the orignal value1d.Decrease y by 3/4 of the orignal value2a.Increase from 10 to 11 2b.Decrease from 16 to 102c.Increase from 8 to 22 ... 顯示更多 Find the percentage increase or decrease in each of the following. 1a.Increase 32 by 8 1b.Decrease 50 by 7 1c.Increase x by 1/8 of the orignal value 1d.Decrease y by 3/4 of the orignal value 2a.Increase from 10 to 11 2b.Decrease from 16 to 10 2c.Increase from 8 to 22 2d.Decrease from 25 to 14.25

最佳解答:

1a.Increase 32 by 8 =8/32=1/4=increase 25% 1b.Decrease 50 by 7 =7/50=decrease 14% 1c.Increase x by 1/8 of the orignal value =increase 12.5% 1d.Decrease y by 3/4 of the orignal value =decrease 75% 2a.Increase from 10 to 11 =(11-10)/10=increase 10% 2b.Decrease from 16 to 10 =(16-10)/16=decrease 37.5% 2c.Increase from 8 to 22 =(22-8)/8=increase 175% 2d.Decrease from 25 to 14.25 =(25-14.25)/25=decrease 43%

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