Corinne has a job selling magazines. She earns $7.50 per hour plus 20% of the total amount of her sales. She also gets an allowance of $40 per week for gas. She knows her weekly earnings can be shown using the following expression:

7.50h + 0.20s + 40

Part A: Identify a coefficient, a variable, and a constant in this expression.
Part B: If Corinne works for 25 hours and sells $300 in magazines, how much does she earn for the week?
Part C: If Corinne gets a raise and begins earning $9 per hour, would the coefficient, variable, or constant in the equation change? Why?

Question

Corinne has a job selling magazines. She earns $7.50 per hour plus 20% of the total amount of her sales. She also gets an allowance of $40 per week for gas. She knows her weekly earnings can be shown using the following expression:

7.50h + 0.20s + 40

Part A: Identify a coefficient, a variable, and a constant in this expression.
Part B: If Corinne works for 25 hours and sells $300 in magazines, how much does she earn for the week?
Part C: If Corinne gets a raise and begins earning $9 per hour, would the coefficient, variable, or constant in the equation change? Why?

tkhunny · Answer

You will need to demonstrate some knowledge of these definition.  You've only a few things.  What are they?

7.50
h
+
0.20
s
+
40

What is each of these?