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EXERCISE 4.1mpl1. The cost of a notebook is twice the cost of a pen. Write a linear equationntivariables to represent this statement.1(Take the cost of a notebook to be x and that of a pen to be F y).V le- and indich h |
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Answer» Let the cost of a notebook = Rs xThe cost of a pen = yAccording to the condition, we have[Cost of a notebook] = 2 × [Cost of a pen]i.e.[x] = 2 × [Y]orx = 2yorx – 2y = 0Thus, the required linear equation is × – 2y = 0. |
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