Section outline

  • lesson content

    Joan goes to the mall to buy her mom a birthday present. She has $40 to spend. She decides to buy her mom a sweater that costs $35. She picks up a small bracelet that costs $2 for her and goes to the register. Before she reaches the register, she remembers that there is a 9%  sales tax . Will Joan be able to buy both items?
    ::琼去商场给她妈妈买生日礼物。她有40美元要花。她决定给她妈妈买一件35美元的毛衣。她拿起一个小手镯,花2美元给她,然后去登记。在她到达登记簿之前,她记得有9%的销售税。琼可以买两样东西吗?

    In this concept, you will learn to calculate the sales tax.
    ::在这一概念中,你会学会计算销售税。

    Calculating Sales Tax
    ::计算销售税

    discount  is an  amount  that is deducted from the original sale price. A  sales tax  is a  percentage  of the sales price of an item that is added to a purchase. Most states have a sales tax.
    ::折扣是从原销售价格中扣除的数额,销售税是增购物品销售价格的百分比,大多数州都有销售税。

    In Maine, the sales tax is 5.5%. If you purchase a book for $25, you will pay $25 plus the sales tax of 5.5%. Find the cost of buying the book in Maine.
    ::在缅因州,销售税为5.5%。如果买一本25美元的书,你将支付25美元加上5.5%的销售税。在缅因州找到买这本书的成本。

    First, find the amount of sales tax for a $25 book. Find 5.5% of $25. 5.5% is also 0.055. Multiply $25 by 0.055.
    ::首先,找到一本25美元的书的销售税额。发现25美元的5.5%。5.5%也是0.055,乘以25乘以0.055。

    25 × 0.055 = 1.375

    Remember, dollars are rounded to the hundredths place. The sales tax is $1.38. Next, add the sales tax to the original price.
    ::记住,美元四舍五入到第一百位。销售税是1.38。接下来,将销售税加到原价。

    25 + 1.38 = 26.38

    The total price for the book, including the sales tax, is $26.38.
    ::包括销售税在内的图书总价为26.38美元。

    Examples
    ::实例

    Example 1
    ::例1

    Earlier, you were given a problem about Joan at the mall.
    ::早些时候,你在商场遇到一个关于琼的问题

    She wants to buy a $35 sweater and a $2 bracelet, but only has $40. To find out if she has enough, she needs to find the  sum  of the items and the sales tax.
    ::她想买一件35美元的毛衣和一个2美元的手镯,但只有40美元。要知道她是否有足够的,她需要找到物品和销售税的总和。

    First, add the cost of the sweater and the bracelet.
    ::首先,加上毛衣和手镯的费用。

    35 + 2 = 37

    Next, find the sales tax for both items. Find 9% of $37. 9% is also 0.09. Multiply $37 by 0.09.
    ::接下来, 找到这两个项目的销售税。 找到9%的37美元。 9%的 9% 也是 0.09 。 乘以 37 乘以 0.09 。

    37 × 0.09 = 3.33

    The sales tax is $3.33. Next, add the sales tax to the cost of the items.
    ::销售税为3.33美元。接下来,在项目成本中加上销售税。

    37 + 3.33 = 40.33

    The total price is $40.33. Joan will not have enough for both.
    ::总价是40.33美元 琼将无法满足两者

    Example 2
    ::例2

    Find the total cost including the sales tax.
    ::查找总成本,包括销售税。

    Kelly and Jack bought tickets to the opera. Each ticket cost $45.00 and there was an 8% sales tax on the total  order . How much did Kelly and Jack spend for their opera tickets?
    ::凯利和杰克买了歌剧的票 每张票要45美元 而且总订单上还有8%的销售税

    First, find the total cost of the tickets. Each ticket cost $45 and they bought 2 tickets.
    ::首先,找出票价总额 每张票价45美元 他们买了两张票

    45 × 2 = 90

    Two tickets cost $90. Next, find the amount of sales tax for the two tickets. Find 8% of $90. 8% is also 0.08. Multiply $90 by 0.08.
    ::两张票价90美元。 接下来, 找到两张票的销售税额。 发现其中8%的90美元。 8%的 8% 也是 0.08。 乘以 90 美元 0. 08 。

    90 × 0.08 = 7.20

    The sales tax is $7.20. Then, add the sales tax to the cost of the tickets.
    ::销售税是7.20美元 然后把销售税加进票价

    90 + 7.20 = 97.20

    Kelly and Jack paid $97.20 for two tickets to the opera.
    ::凯莉和杰克支付了97.20美元 两张歌剧票

    Example 3
    ::例3

    What would you pay for a $35.00 book if the sales tax is 5%?
    ::如果销售税是5% 你会花多少钱买一本35.00美元的书?

    First, find the amount of sales tax for a $35 book. Find 5% of $35. 5% is also 0.05. Multiply $35 by 0.05.
    ::首先,找到一本35美元的书的销售税额。 找到35美元的5%。 5%也是0.05。 乘以35乘以0.05。

    35 × 0.05 = 1.75

    The sales tax is $1.75. Next add the sales tax to the cost of the book.
    ::销售税为1.75美元,下加本书成本的销售税。

    35 + 1.75 = 36.75

    The total price of the book is $36.75.
    ::该书总价为36.75美元。

    Example 4
    ::例4

    What would you pay for a $99.00 a night hotel room if the sales tax is 7%?
    ::如果销售税是7% 你会付多少?

    First, find the amount of sales tax for $99. Find 7% of $99. 7% is also 0.07. Multiply $99 by 0.07.
    ::首先,找出99美元的销售税额。 找出99美元的7%。 7%的销售税额也是0.07。 乘以99乘以0.07。

    99 × 0.07 = 6.93

    The sales tax is $6.93. Next add the sales tax to the cost of the book.
    ::销售税为6.93美元,下加销售税作为图书成本。

    99 + 6.93 = 105.93

    The total price of the book is $105.93.
    ::这本书的总价格是105.93美元。

    Example 5
    ::例5

    What is the cost of a $42.50 item with a 2% sales tax?
    ::征收2%销售税的42.50美元项目的费用是多少?

    First, find the amount of sales tax for $42.50 item. Find 2% of $42.50. 2% is also 0.02. Multiply $42.50 by 0.02.
    ::首先,找到42.50项的销售税数额;发现42.50项的2%。2%也是0.02,乘以42.50乘以0.02。

    42.50 × 0.02 = 0.85

    The sales tax is $0.85. Next, add the sales tax to the cost of the item.
    ::销售税为0.85美元,下面,在项目成本中加上销售税。

    42.50 + 0.85 = 43.35

    The total price of the book is $43.35.

    ::这本书总价43.35美元。

    Review
    ::回顾

    Find the total cost if the sales tax is 4%.
    ::如果销售税为4%,就找出总成本。

    1. Total: $56.75
      ::共计:56.75美元
    2. Total: $43.25
      ::共计:43.25美元
    3. Total: $65.00
      ::共计:65.00美元
    4. Total: $25.50
      ::共计:25.50美元
    5. Total: $18.75
      ::共计:18.75美元
    6. Total: $59.00
      ::共计:59.00美元
    7. Total: $21.50
      ::共计:21.50美元
    8. Total: $44.50
      ::共计:44.50美元
    9. Total: $125.50
      ::共计:125.50美元
    10. Total: $430.00
      ::共计:430.00美元
    11. Total: $890.50
      ::共计:890.50美元
    12. Total: $998.35
      ::共计:998.35美元
    13. Total: $2,356.75
      ::共计:2 356.75美元
    14. Total: $3005.50
      ::共计:3005.50美元
    15. Total: $5678.25
      ::共计:5678.25美元

    Review (Answers) 
    ::回顾(答复)

    Click   to see the answer key or go to the Table of Contents and click on the Answer Key under the 'Other Versions' option.
    ::单击可查看答题键, 或转到目录中, 单击“ 其他版本” 选项下的答题键 。

    Resources
    ::资源