Question

1) 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

Answer:

I. 2(x+y)=40 cm

ii. two numbers are 5x and 3x .

Step-by-step explanation:

I. perimeter of rectangle is 2(l+b).

so if we take in terms of x and y then 2(x+y).

ii. ratio is 5 : 3 so the actual value in terms of land y will be 5x and 3x.

Answer 2

Answer:

I) 2x + 2y = 2(x + y) = 40 cm

ii)

$\frac{x}{y} = \frac{5}{3}$

Step-by-step explanation:

Let x be the length and y be the breadth of the rectangle then

perimeter = 2x + 2y = 2(x + y) = 40 cm

Let the first number b x and the second number be y then their ratio is:

$\frac{x}{y} = \frac{5}{3}$