SOLUTION: a photograph measures 21cm by 15 cm. A strip of constant width is to be cut from each side of the photo. So area is reduced to 216cm squared. find the width of the cut.

Algebra.Com
Question 1033901: a photograph measures 21cm by 15 cm. A strip of constant width is to be cut from each side of the photo. So area is reduced to 216cm squared. find the width of the cut.
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
If neither of these videos help, tell me and I will do a few comments and algebra steps:


rectangular inside border

rectangular outside border

RELATED QUESTIONS

Solving Problems with Quadratic Equations 22. A photograph measures 21 cm by 15 cm. A... (answered by arallie)
Solving Problems with Quadratic Equations 23. A photograph measures 20 cm by 16 cm. A... (answered by arallie)
A photograph measures 20 cm by 16 cm. A strip of constant width is to be cut off the top... (answered by drk)
A photo measures 10cm by 8cm. The photo is cropped by cutting a strip of a constant width (answered by Boreal)
The Pinetown Recreation Bureau planned to build a rectangular ice-skating rink with... (answered by ikleyn)
A 4in. by 6in. photograph is enlarged so that the length of the photo is 10.5 in. What... (answered by ewatrrr)
a strip of uniform width is to be cut off of both sides and both ends of a sheet of paper (answered by edjones)
A strip of uniform width is to be cut off of both sides and both ends of a sheet of paper (answered by cleomenius)
A strip of uniform width is to be cut off of both sides and both ends of a sheet of paper (answered by mananth)