Question

CJ's garden is surrounded by a uniform width walkway . The Garden and walkway together cover an area of 320 square feet . If the dimensions of the garden are 12 feet by 16 feet determine the width of the walkway?

HELP ME!!!!!!!!!!!!!!!!!PLEASE!!!!!!!!!!!!!

Answer 1

the walkway is 2 feet wide

Explanation:

x=walkway width

(12+2x)(16+2x)=320

192+24x+32x+4x^2=320

simplify

4x^2+56x+192=320

4x^2+56x-128=0

divide by 4

x^2+14x-32=0

factor

(x+16)(x-2)=0

x=-16

x=2

Answer 2

the answer is 2ft

Explanation:

I hope its right