Question

Perimeter of a rectangle is 108m and length is 30 m, fond its breadth.
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Answer 1

Answer:

Your answers in attachment

Answer 2

Answer:

24

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Step-by-step explanation:

We can find the breadth using the perimeter formula and the algebraic format to solve.

P = 2 (l +B) OR L + L + B + B

108m = 2( 30 + x )      *Make the missing number x*

Open the brackets;

108 = 60 + 2x

Gather like terms. *(Move 60 over to 108 to leave 2x, the odd one, out)

108-60 = 2x  

*When a number crosses the equality the sign changes*

48 = 2x

We are looking for the value of x so, the 2 has to go so that x would be left alone. We can do this by dividing both sides by 2 to eliminate 2 or we can simply move 2 to meet 48 and since it is crossing the equality it changes from * to /

48/2 = 2x/2

24 = x