Question

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

Answer 1

Explanation:

Given expression

7.50h + 0.20s + 40

A)

Coefficients are 7.50 and 0.20

Variables are h and s

Constant=40

B) if Corinne works for 25 hours and selling $300 in magazine

Weekly earnings = 7.50h + 0.20s + 40

=7.50(25) + 0.20(300) + 40

= 187.5 + 60 + 40

=$287.5

C)

If Corinne starts earning $9 per hour.

Original expression

7.50h + 0.20s + 40

New expression

9h + 0.20s + 40

The coefficient of h will change because of the increase in earnings per hour

Coefficients are 9 and 0.20