Solve Mark-up Applications In the following exercises, find (a) the amount of mark-up and (b) the list price. Priam bought a jacket that was on sale for 40% off. The original price of the jacket was $150. While the sales clerk figured the price by calculating the amount of discount and then subtracting that amount from SI50, Priam found the price faster by calculating 60% of $150. (a) Explain why Priam was correct. (b) Will Priam's method work for any original price?
Solve Mark-up Applications In the following exercises, find (a) the amount of mark-up and (b) the list price. Priam bought a jacket that was on sale for 40% off. The original price of the jacket was $150. While the sales clerk figured the price by calculating the amount of discount and then subtracting that amount from SI50, Priam found the price faster by calculating 60% of $150. (a) Explain why Priam was correct. (b) Will Priam's method work for any original price?
Solve Mark-up ApplicationsIn the following exercises, find (a) the amount of mark-up and (b) the list price.
Priam bought a jacket that was on sale for 40% off. The original price of the jacket was $150. While the sales clerk figured the price by calculating the amount of discount and then subtracting that amount from SI50, Priam found the price faster by calculating 60% of $150.
(a) Explain why Priam was correct.
(b) Will Priam's method work for any original price?
Felipa says she has an easy way to estimate the sales tax when she makes a purchase. The sales tax in her city is 9.05%. She knows this is a little less than 10%.
(a)
Convert 10% to a fraction.
(b)
Use your answer from (a) to estimate the sales tax Felipa would pay on a $95 dress.
Last year, Josh opened an investment account with $6200. At the end of the year, the amount in the account had increased by 23%.
(a) Fill in the blank to write the year-end amount in terms of the original amount. Write
your answer as a decimal.
Year-end amount =
x Original amount
%3D
(b) Use your answer in part (a) to determine the year-end amount in Josh's account.
Year-end amount: $
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Last year, Miguel opened an investment account with $6200. At the end of the year, the amount in the account had decreased by 6%.
(a) Fill in the blank to write the year-end amount in terms of the original amount. Write
your answer as a decimal.
Year-end amount =
× Original amount
%3D
(b) Use your answer in part (a) to determine the year-end amount in Miguel's account.
Year-end amount: $
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