JoAnn was hired as a book sales rep. Her hourly wage is $8.50 per hour. In addition, she is paid $3.50 bonus for each sale she makes. Which of the following expression represents how much she makes per week if she made 5 sales and worked n number of hours per week.
a. 5n(8.50 + 3.50)
b. 5(8.50n + 3.50)
c. 8.50n + (3.50 x 5)
d. (8.50 + 3.50) x (5 + n)
Solution: c
Why:
In order to solve this problem we must follow the steps below:
1) The amount that she earned from her job per week = 8.50 x n = 8.50n
2) The amount she earned per week by making 5 sales = 3.50 x 5
3) The total amount she would earn = The total of both of the above which will be:
8.50n + (3.50 x 5). Therefore this will be the correct expression.
©Copyright 2007.Najwa S. Hirn. All rights reserved.
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