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. (3 points)

Part B: If Corinne works for 25 hours and sells $300 in magazines, how much does she earn for the week? Show your work to receive full credit. (4 points)

Answer 1

Part C: If Corinne gets a raise and begins earning $9 per hour, would the coefficient, variable, or constant in the equation change? Why?

Answer 2

constants -- just numbers....no letters.......ex: 5,6,7,8,9
variable -- the letters.....ex: n,m,x,y,
coefficient -- a number multiplied by a letter (variable)....ex: 4n,3y,8z
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if she earned 300 and worked for 25 hrs...
so sub in 25 for h and 300 for s and solve...
7.50(25) + 0.20(300) + 40 = money earned for the week. (you can do the math)
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if she earned 9.00h instead of 7.50h....so the item that will change is the number multiplied by the variable....and what is that called ?

Answer 3

Still need help?

Answer 4

Nope, i got it. thanks

Answer 5

:)