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Yana has a dog that weighs 34.925 pounds. Which shows the expanded form of the dog's weight? 4. A. \( (3 \times 10)+(4 \times 1)+(9 \times 0)+(2 \times 0.1)+(5 \times 0.01) \) 8. \( (3 \times 10) \div(4 \times 1) *(9 \times 0.1) *(2 \times 0.01)+(5 \times 0.001) \) C. \( (3 \times 1,000)+(4 \times 100)+(9 \times 10)+(2 \times 1)+(5 \times 0.01) \) D. \( (3 \times 100)+(4 \times 1)+(9 \times 0.1)+(2 \times 0.01)+(5 \times 0.001) \)

Ask by Harris Boyd. in the United States
Jan 24,2025

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Answer

The correct expanded form of 34.925 pounds is \( (3 \times 10) + (4 \times 1) + (9 \times 0.1) + (2 \times 0.01) + (5 \times 0.001) \). None of the provided options accurately represent this.

Solution

To determine the correct expanded form of Yana's dog's weight, which is **34.925 pounds**, let's break it down by place value: 1. **Tens place (10ⁱ)**: 3 × 10 = 30 2. **Ones place (1ⁱ)**: 4 × 1 = 4 3. **Tenths place (0.1ⁱ)**: 9 × 0.1 = 0.9 4. **Hundredths place (0.01ⁱ)**: 2 × 0.01 = 0.02 5. **Thousandths place (0.001ⁱ)**: 5 × 0.001 = 0.005 **Combined, the expanded form is:** \[ 30 + 4 + 0.9 + 0.02 + 0.005 \] Looking at the provided options: - **Option A**: \[ (3 \times 10) + (4 \times 1) + (9 \times 0) + (2 \times 0.1) + (5 \times 0.01) \] - **Issue**: The term \(9 \times 0\) incorrectly represents the tenths place. - **Option B**: \[ (3 \times 10) \div (4 \times 1) * (9 \times 0.1) * (2 \times 0.01) + (5 \times 0.001) \] - **Issue**: Contains incorrect mathematical operations (division and multiplication) that don't align with standard expanded form. - **Option C**: \[ (3 \times 1,000) + (4 \times 100) + (9 \times 10) + (2 \times 1) + (5 \times 0.01) \] - **Issue**: Incorrect place values for the given number (e.g., \(3 \times 1,000 = 3,000\) which is not part of 34.925). - **Option D**: \[ (3 \times 100) + (4 \times 1) + (9 \times 0.1) + (2 \times 0.01) + (5 \times 0.001) \] - **Issue**: The term \(3 \times 100\) incorrectly represents the hundreds place instead of the tens place. **Conclusion:** None of the provided options perfectly match the correct expanded form. However, **Option D** is **closest** to the correct structure despite having an error in the hundreds place. It correctly represents the decimal places. **Correct Expanded Form:** \[ (3 \times 10) + (4 \times 1) + (9 \times 0.1) + (2 \times 0.01) + (5 \times 0.001) \] **Recommended Answer:** **None of the provided options correctly represent the expanded form of 34.925 pounds.** The accurate expanded form should be: \[ (3 \times 10) + (4 \times 1) + (9 \times 0.1) + (2 \times 0.01) + (5 \times 0.001) \]

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Mind Expander

Understanding expanded form can be a bit tricky, but it's all about breaking down a number into its individual place values! In the case of Yana's dog weighing 34.925 pounds, we can represent it as: \( (3 \times 10) + (4 \times 1) + (9 \times 0.1) + (2 \times 0.01) + (5 \times 0.001) \). That's option A, which clearly shows the breakdown of each digit according to its place value! Now, let's talk about common mistakes when working with expanded form. A frequent pitfall is misplacing decimal point values or miscalculating their contributions. For example, confusing place values, such as \( (9 \times 0) \) instead of \( (9 \times 0.1) \), can lead to incorrect representations. Always take a moment to double-check each digit's position and associated value!

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