Answer:
15
you can use the equation p = 2l+2w to find the width of the rectangle
Step-by-step explanation:
perimeter of a rectange p = 2l+2w
l = length
w = width
p = perimeter
it tells you the perimeter is 50 so p=50
it also tells you the length is 10
solve for w (width)
50 = 2(10)+2w
50 = 20+2w
30 = 2w
15 = w
width is 15
