Ask a New Question

the length of a rectangle is increased by 25%. by what percentage should the width be decreased so that the area of the rectangle remains unchanged

1 answer

a 25% increase is a factor of 5/4

So, you need 4/5 of the width for the area to stay the same

(5/4 l)(4/5 w) = lw

So, what % decrease is 4/5?

Ask a New Question or answer this question.

Similar Questions

the width of a rectangle is 4cm and the length is 8 cm if both the width and the length are increased by equal measures, the
1. 3 answers
If the length of a rectangle is increased by 25%, by what percentage should the width of the rectangle be decreased to maintain
1. 1 answer
the dimensions of a rectangle are such that its length is 3 inches more than its width. if the length were double and if the
1. 2 answers
the length of a rectangle is 2cm longer than the width. if its length and width are both increased by 4cm, its area is increased
1. 0 answers

more similar questions