Question

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. . 1..Identify a coefficient, a variable, and a constant in this expression.. . 2.If Javier works for 5 days and installs 48 windows, how much does he earn? . . 3. If Javier gets an increase in his stipend and receives $40 for snacks, would the coefficient, variable, or constant in the equation change? Why?

Answer 1

1. The coefficient is the number before the variable(letter), so 8.
    The variable is the amount of windows (w).
    The constants (stands alone) are $75 and $25.
2. Laid out: 5x$75 ($75 a day) + 48x$8 ($8 per window) + $25 
                   $375                      + $384                             + $25= ($784 earned)
3. The coefficient is 8.
    The variable is the w (amount of windows).
    The constants are $75 and $40.


The constants changed because it's no longer $75 and $25, one of the constants ($25) increased to $40.

    

Answer 2

Identify a coefficient, a variable, and a constant in this expression.. . 2.If Javier works for 5 days and installs 48 windows, how much does he earn? . . 3. If Javier gets an increase in his stipend and receives $40 for snacks, would the coefficient, variable, or constant in the equation change? Why?

Answer:
1) coefficient: 75 Variable: d constant: 25.
2) 75d+8w+25=
75*5+8*48+25=
375+384+25=
759+25=
784
3) the constant would change, the reason being that there is no variable attached to the number.

I hope it helps, Regards.