Answer:
Step-by-step explanation:
Let x represent the width of the rectangular family portrait, which means its length can be described as 2x - 15.
Perimeter formula:-
(1)
Setting the perimeter of the frame equal to 60 inches, we substitute P=60 into (1), yielding

By adding 30 to both sides, we get

Dividing both sides by 6 gives us

as a result, Width = 15 inches
Additionally, Length = 2(15) - 15 = 15 inches.
Therefore, the dimensions of the frame are both 15 inches in length and width.