Question

Express the following information in mathematical form using variables x and y.
i) The perimeter of a rectangle is 40 cm.
ii) The ratio of two numbers is 5:3​

Answer 1

i) the perimeter of rectangle:

let x and y be the length and breadth respectively

perimeter of rectangle=40

2(length+breadth)=40

2(x+y)=40. (since x is length and y is breadth)

2x+2y =40

ii). (x:y). = 5:3

OR

x/y= 5/3