The perimeter of the rectangular picture frame is 108 mm. find its length and width if the width is 3 more than twice the length.

a=17 mm length

               b=37 mm width

Step-by-step explanation:

P=2a+2b

a -length

b-width

b=2a+3

108mm=2a+2(2a+3)

108=6a+6

6a=102

a=17 mm

b=17*2+3

b=34+3

b=37 mm

if you mean

then it's c. 8, -7/3

but if you mean

then it is

853.3

step-by-step explanation: