Ron Larson
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2.1 Unit Prices

2.1 Unit Prices
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  • 11. Discount Store Savings on Fruit Drinks

    At a discount store, fruit drinks average $1.08 less per gallon than at a supermarket. A family of four people purchases all of its fruit drinks at the discount store. Use the graph to estimate the annual savings. (See Example 5 and Example 6.)

    • Worked-Out Solution

      So, on fruit drinks alone, the family is saving about $55.73 by shopping at the discount store. You can see that by doing all of their grocery shopping at the discount store, the family would save several hundred dollars each year.

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     __   _     ______    ______   _    _      _____  
| || | ||  /_   _//  /_____// | || | ||   / ___// 
| '--' ||   -| ||-   `____ `  | || | ||   \___ \\ 
| .--. ||   _| ||_   /___//   | \\_/ ||   /    // 
|_|| |_||  /_____//  `__ `     \____//   /____//  
`-`  `-`   `-----`   /_//       `---`   `-----`   
                     `-`
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  • 12. Discount Store Savings on Ground Coffee

    At a discount store, ground coffee averages $0.10 less per ounce than at a supermarket. Four college roommates purchase all their ground coffee at the discount store. Use the graph to estimate the annual savings. (7.68 ounces of ground coffee make 1 gallon of coffee.) (See Example 5 and Example 6.)

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      _____    __   __    ______    _____      _____  
 /  ___||  \ \\/ //  /_____//  |  ___||   / ___// 
| // __     \ ` //   `____ `   | ||__     \___ \\ 
| \\_\ ||    | ||    /___//    | ||__     /    // 
 \____//     |_||    `__ `     |_____||  /____//  
  `---`      `-`'    /_//      `-----`  `-----`   
                     `-`
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    system user
    Guest   4 years ago |
    MATH
    0
    system user
    Cody (moderator)1 decade ago |
    I'm not quite sure what you mean. Could you please explain your concerns and I will be happy to help answer any questions you might have.

    Thank you.
    3
    system user
    Guest   1 decade ago |
    i dont beleive this gives you enough TRUE information to solve this
    2
  • 13. Discount Store Savings on Water

    At a supermarket, a 24-pack of 16.9-fluid-ounce bottles of water costs $4.99.

    1. At a discount store, a 35-pack of 16.9-fluid-ounce bottles of water costs $4.49. Suppose you buy all your bottled water at the discount store instead of at the supermarket. How much will you save per year?

    2. Your tap water rate is $2.62 per 1000 gallons of water. Suppose you use tap water instead of buying bottled water at the supermarket. How much will you save per year? (See Example 5 and Example 6.)

    • Worked-Out Solution

      1. Begin by calculating the annual cost from each source.

        You would save $17.56 per year by buying your bottled water at a discount store.

      2. At $2.62 for 1000 gallons, tap water is close to being free.

        You would save $45.75 per year by using tap water instead of buying bottled water at a supermarket

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      ____     _    _    __   __   _    _    _    _   
 |  _ \\  | || | ||  \ \\/ // | || | || | |  | || 
 | |_| || | || | ||   \   //  | || | || | |/\| || 
 | .  //  | \\_/ ||   / . \\  | \\_/ || |  /\  || 
 |_|\_\\   \____//   /_//\_\\  \____//  |_// \_|| 
 `-` --`    `---`    `-`  --`   `---`   `-`   `-`
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    system user
    Guest   3 months ago |
    I do not understand number B. I get how the annual cost comes out to $0.08, but where do you get the number $45.75 from?
    0
    system user
    Guest   4 years ago |
    no
    2
  • 14. Savings on Homemade Coffee Creamer

    You use 0.5 fluid ounce of coffee creamer with each 6-fluid-ounce "cup" of coffee. The creamer that you use costs $2.19 for 16 fluid ounces. You can make homemade coffee creamer using the recipe shown. (See Example 5 and Example 6.)

    • Estimate how much you could save annually by making your own creamer.
    • The vanilla extract is optional. Estimate how much you could save annually by making your own creamer without the vanilla instead of buying the creamer at the store.
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     _    _     _____     _____     ______    _  _   
| || | ||  |  ___||  / ____||  /_   _//  | \| || 
| || | ||  | ||__   / //---`'   -| ||-   |  ' || 
| \\_/ ||  | ||__   \ \\___     _| ||_   | .  || 
 \____//   |_____||  \_____||  /_____//  |_|\_|| 
  `---`    `-----`    `----`   `-----`   `-` -`
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