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21 September, 06:32

Javier has a job installing windows. He earns a rate of $75 per day plus $8 per window installed. He also receives a stipend of $25 for snacks. Javier knows his weekly earnings can be shown with the following expression:

75d + 8w + 25

Part A: Identify a coefficient, a variable, and a constant in this expression.

Part B: If Javier works for 5 days and installs 48 windows, how much does he earn? Show your work to receive full credit.

part C: If Javier gets an increase in his stipend and receives $40 for snacks, would the coefficient, variable, or constant in the equation change? Why?

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  1. 21 September, 06:42
    0
    A. a coefficient would be 75 or 8. The variables d and w as the constant is 25.

    B. 75d+8w+25

    75 (5) + 8 (48) + 25

    375+384+25

    400+384

    784

    Javier earns $784

    C. If Javier gets an increase in his stipend and receives $40 for snacks, the constant in the equation would change because The coefficients are affected by the amount of days or windows he worked/installed while the constant before, of $25, is non-related to the work due to the fact that its used for snacks. And since his stipend for snack increases, only the constant changes.
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