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#1 2005-12-14 10:45:59
- babyangel1972
- Member
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Word problem
Between the years 1999 and 2003 the average text book rose from $45.00 to $67.00/ What is the percent of increase (rounded to the nearest whole number) for the average text book.
#2 2005-12-14 11:17:19
- mathsyperson
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Re: Word problem
Percentage increase = (new amount - old amount)/old amount.
So in this case, it would be (67-45)/45 = 22/45.
Multiply this by 100% to get a percentage and you get an increase of 49% to the nearest whole number.
Why did the vector cross the road?
It wanted to be normal.
#3 2005-12-14 17:58:36
- MathsIsFun
- Administrator
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Re: Word problem
Babyangel, maybe you could post future questions below here (click "Post Reply") , so that we can get a "BabyAngel" discussion going, and help you along better. 
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman