Question

determine the width of the following if perimeter is equal to 18 the length of rectangle is equal to 5

Answer 1

$l = 5 \\ p = 18 \\ \\ 2(l + b) = 18 \\ 2(5 + b) = 18 \\ 5 + b = 9 \\ b = 4$

Answer 2

Answer:

Step-by-step explanation:

Perimeter=18

2(l+b)=18

l+b=18/2

5+b=9

b=9-5

b=4