Which Of The Following Expressions Shows How To Calculate The Unit Price For A 28-ounce Jar Of Spaghetti Sauce Priced At $\$ 2.89$?A. $(\$ 2.89)(28$\] B. $\$ 2.89 - 28$ C. $\frac{28}{\$ 2.89}$ D. $\frac{\$

by ADMIN 209 views

Understanding Unit Price

Unit price is a fundamental concept in mathematics that plays a vital role in various aspects of life, including commerce, finance, and everyday transactions. It refers to the price of a single unit of a product, usually expressed in terms of currency per unit of measurement (e.g., dollars per ounce). In this article, we will delve into the concept of unit price and explore how to calculate it using a real-world example.

The Importance of Unit Price

Calculating unit price is essential in making informed purchasing decisions. By knowing the unit price of a product, consumers can compare prices across different brands, sizes, and types, ultimately saving money and making more informed choices. For instance, when shopping for a 28-ounce jar of spaghetti sauce, a consumer may want to compare the prices of different brands to determine which one offers the best value.

Calculating Unit Price: A Step-by-Step Guide

To calculate the unit price of a product, we need to divide the total price by the number of units. In the case of a 28-ounce jar of spaghetti sauce priced at $2.89\$ 2.89, we can use the following formula:

Unit Price = Total Price ÷ Number of Units

Analyzing the Options

Now, let's analyze the given options to determine which one shows how to calculate the unit price for a 28-ounce jar of spaghetti sauce priced at $2.89\$ 2.89.

Option A: ($2.89)(28)(\$ 2.89)(28)

This option is incorrect because it represents the total price multiplied by the number of units, which is the opposite of what we need to calculate the unit price.

Option B: $2.89−28\$ 2.89 - 28

This option is also incorrect because it represents the subtraction of the number of units from the total price, which is not a valid method for calculating unit price.

Option C: 28$2.89\frac{28}{\$ 2.89}

This option is incorrect because it represents the division of the number of units by the total price, which is the opposite of what we need to calculate the unit price.

Option D: $2.8928\frac{\$ 2.89}{28}

This option is correct because it represents the division of the total price by the number of units, which is the correct method for calculating unit price.

Conclusion

In conclusion, calculating unit price is a crucial concept in mathematics that plays a vital role in various aspects of life. By understanding how to calculate unit price, consumers can make informed purchasing decisions and save money. In this article, we analyzed the given options and determined that the correct method for calculating unit price is to divide the total price by the number of units.

Real-World Applications

Calculating unit price has numerous real-world applications, including:

  • Comparing prices: By calculating the unit price of different products, consumers can compare prices across different brands, sizes, and types.
  • Making informed purchasing decisions: By knowing the unit price of a product, consumers can make informed purchasing decisions and save money.
  • Optimizing inventory management: By calculating the unit price of products, businesses can optimize their inventory management and reduce waste.

Common Mistakes

When calculating unit price, it's essential to avoid common mistakes, including:

  • Confusing total price with unit price: Make sure to divide the total price by the number of units to calculate the unit price.
  • Using the wrong formula: Use the correct formula: Unit Price = Total Price ÷ Number of Units.
  • Rounding errors: Be careful when rounding numbers to avoid errors in calculations.

Tips and Tricks

Here are some tips and tricks to help you calculate unit price like a pro:

  • Use a calculator: Use a calculator to avoid errors in calculations.
  • Check your units: Make sure to use the correct units (e.g., dollars per ounce).
  • Round to the nearest cent: Round the unit price to the nearest cent to avoid errors.

Conclusion

In conclusion, calculating unit price is a crucial concept in mathematics that plays a vital role in various aspects of life. By understanding how to calculate unit price, consumers can make informed purchasing decisions and save money. By avoiding common mistakes and using the correct formula, you can calculate unit price like a pro.