Question

(c) A teacher decided to put up a new blackboard in her classroom. The length and breadth of the board are 7 cm and b cm, respectively. 2 () She decided to frame the board using a thick ribbon. If she needs 25 cm more ribbon than the perimeter of the blackboard, express the total ribbon length needed in terms of l and b. (ii) What will be the expenditure for making 50 such boards, if the carpenter charges z per board? ?​

Answer 1

Answer:

length is 1cm

let breadth is x cm

then perimeter is 2(1+x)

she need 35cm extra then length is 2x+2+35 cm

that is 2x+37

for 50 such boards is 50×2x+37

1850+100x

length is 1 cm let what is discussed then prices to bracket 1 of 1 + X (of c need it t5x change the length is 2 x + 2 + 35 cm then is then is 50 into 2 X + 37 X skull 288 50 + 100 x x is equal to 19500

Step-by-step explanation:

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