5x7 inch photo is surrounded by a frame of uniform width. The total area is 60in. Find the dimensions of the frame

Question

aihberkhan · Answer

Are we supposed to find the width? @HELP!!!!

help!!!! · Answer

yup and the length

anonymous · Answer

Are there answer choices or no?

help!!!! · Answer

@zepdrix @Victoriasushchik @dan815

help!!!! · Answer

The dimensions are $$1+\sqrt{61} by -1+\sqrt{61}$$

help!!!! · Answer

thats the answer. I just need the formula! This is mine but it's wrong. (7+2x)(5+2x)-35=25

help!!!! · Answer

@inkyvoyd @ikram002p

victoriasushchik · Answer

@HELP!!!! 
Width of the frame (x): 
(5 + x)(7 + x) = 80 
35 + 5x + 7x + x² = 80 
x² + 12x = 45 
x² + 6x = 45 + 6² 
x² + 6x = 45 + 36 
(x + 6)² = 81 
x + 6 = 9 
x = 3 

Answer: 3 feet 

Proof (total area is 80): 
= (5 feet + 3 feet)(7 feet + 3 feet) 
= 8 feet(10 feet) 
= 80 square feet

victoriasushchik · Answer

did this help?

help!!!! · Answer

hmm.. I'm not entire sure.. I need to find the length and width.. I tried 3 but it didnt work

help!!!! · Answer

(7+2x)(5+2x)=60

victoriasushchik · Answer

maybe you are doing something wrong go  by the steps

victoriasushchik · Answer

i gave you the formula thats what u asked for =(