SOLUTION: A rectangular swimming pool which measures 40m by 25m, is to be tripled in area, by extending each side by the same amount. Determine the amount extend each side by

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Question 1189561: A rectangular swimming pool which measures 40m by 25m, is to be tripled in area, by extending each side by the same amount. Determine the amount extend each side by
Answer by ikleyn(52848) About Me  (Show Source):
You can put this solution on YOUR website!
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New dimensions are 40+x meters and 25+x meters.


New area is  (40+x)*(25+x)  square mwters.


It must be equal to  3*40*25 square meters.


So, your equation to find x is

    (40+x)*(25+x) = 3*40*25.


Simplify it; reduce to the standard quadratic equation form and solve.

Happy solving (!)

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Closely related to it are the lessons
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in this site.

Also,  you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic
"Dimensions and the area of rectangles and circles and their elements".

Save the link to this online textbook together with its description

Free of charge online textbook in ALGEBRA-I
https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson

to your archive and use it when it is needed.