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## #1 2005-12-13 11:45:59

babyangel1972
Member
Registered: 2005-12-12
Posts: 18

### 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.

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## #2 2005-12-13 12:17:19

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

### 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.

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## #3 2005-12-13 18:58:36

MathsIsFun
Registered: 2005-01-21
Posts: 7,686

### 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

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