Asked by Dummy
During an electronic store's Sale Day, the regular price for CD Players is discounted $10. There is a states sale tax of 5%, and the $10 discount is applied before the sales tax is calculated.
A. Write an expression that shows the regular price r of a CD Player minus $10 discount.
B. Write a rule for the function p(r) that expresses the final price p of a CD Player with the discount applied and sales tax included.
C. How much would you pay during Sales Day for a CD Player regularly priced at $29.50?
A. Write an expression that shows the regular price r of a CD Player minus $10 discount.
B. Write a rule for the function p(r) that expresses the final price p of a CD Player with the discount applied and sales tax included.
C. How much would you pay during Sales Day for a CD Player regularly priced at $29.50?
Answers
Answered by
henry2,
A. P = Pr - 10.
B. P = (Pr-10) + 0.05(Pr -10) = 1.05(Pr-10).
C. P = 1.05(Pr-10) = 1.05(29.50-10) = $20.48.
B. P = (Pr-10) + 0.05(Pr -10) = 1.05(Pr-10).
C. P = 1.05(Pr-10) = 1.05(29.50-10) = $20.48.
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