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3 July, 12:56

The principal of a high school spent 1700 for X desk each and Y chairs at $25 each if he had bought half the number of desk in twice the number of chairs he would have spent 1600 right to linear equation to represent the two conditions stated above

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  1. 3 July, 16:46
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    25X + 25Y = 1700

    25X + 100Y = 3200

    Step-by-step explanation:

    Given that the principal of a high school spent $1700 for X desk and Y chairs at $25 each. Then, the equation will be

    25X + 25Y = 1700 ... (1)

    If he had bought half the number of desk in twice the number of chairs he would have spent 1600. That is

    25 (X/2) + 25 (2Y) = 1600

    25X/2 + 50Y = 1600

    Find the LCM and cross multiply

    25X + 100Y = 3200 ... (2)
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