Question

Use the formula P=21+2w to find the width of a rectangle when the length is 18cm and perimeter is 48 ..

Answer 1

w=6

Explanation:

P=2(L)+2(w)

48= 2(18)+2w

48=36+2w

12=2w

w=6

checking;

48= 2(18)+2(6)

48= 36+12

48= 48