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					COURSE 2 LESSON 6-7




                      Applications of Percent
                        A video game costs $34.98. The sales tax rate is 5.5%.
               Find the total cost.

         0.055 • 34.98 = 1.9         Find the sales tax. Round to the nearest cent.

         34.98 + 1.92 = 36.90        Add the purchase price to the sales tax.

         The total cost is $36.90.




                                           6-7
COURSE 2 LESSON 6-7




                      Applications of Percent
                          Use estimation to calculate a 15% tip for each amount.
         a. $34.50
                  34.50     35           Round to the nearest dollar.

                0.1 • 35 = 3.5.          Find 10% of the bill.
                 1
                   • 3.5 = 1.75          Find 5% of the bill. 5% is 1 of the 10% amount.
                 2                                                2
            3.5 + 1.75 = 5.25            Add 10% amount and 5% amount to get 15%.

            A 15% tip for $34.50 is about $5.25.




                                             6-7
COURSE 2 LESSON 6-7




                      Applications of Percent
                          (continued)

         b. $11.84
                  11.84    12           Round to the nearest dollar.

               0.1 • 12 = 1.2.          Find 10% of the bill.
                 1
                   • 1.2 = 0.6          Find 5% of the bill. 5% is 1 of the 10% amount.
                 2                                               2
            1.20 + 0.6 = 1.8            Add 10% amount and 5% amount to get 15%.

            A 15% tip for $11.84 is about $1.80.




                                            6-7
COURSE 2 LESSON 6-7




                      Applications of Percent
                       The bill for dinner is $22.58. The sales tax is 7.5%, and
               you want to leave a tip of about 20%. How much will you pay?
         Step 1       Find the sales tax.
                      0.075 • 22.58 = 1.6935
                      The sales tax is $1.69.
         Step 2       Find the tip.
                      22.58 23                      Round to the nearest dollar.
                      0.2 • 23 = 4.6                Find 20% of the bill.
         The tip is $4.60
         Step 3       Add the tax and tip to the bill to find the total.
                      total = food bill + tax + tip
                            = 22.58 + 1.69 + 4.60
                            = 28.87
         You will pay $28.87 for dinner.

                                                 6-7

				
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