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?
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.
there are 20 marbles, 5 red ones. there is 5/20 chance or 1/4 chance you draw a red one. Then if you do draw a red one, there are 4 red ones left in 19 marbles, so you multiply (1/4)*(4/19)
