If the length of a rectangle is increased by 30% and the width of the same rectangle is decreased by 30%, what is the effect on the area of a rectangle?

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- May 30th 2012, 01:14 PMMat724SAT rectangle problem
If the length of a rectangle is increased by 30% and the width of the same rectangle is decreased by 30%, what is the effect on the area of a rectangle?

- May 30th 2012, 01:41 PMbritmathRe: SAT rectangle problem
Obviously the area of a rectangle with length L and width W is L*W, so, you want to think about how you might modify this product to reflect the fact that L is 30% larger and W is 30% smaller; if you then write this new product down, hopefully you'll be able to see how the area is modified.

- May 31st 2012, 06:39 AMMat724Re: SAT rectangle problem
i got no change somehow... but that is wrong... This is a level 5 question on the SAT practice test. No wonder its pretty difficult

- May 31st 2012, 07:49 AMskeeterRe: SAT rectangle problem