Find the unit rates. If necessary, round your answers to the nearest hundredth.

$8.49 for 12 kg

 dollars per kg

 kgs per dollar.

To find the unit rates, we need to calculate both **dollars per kilogram** and **kilograms per dollar**.

### 1. **Dollars per kilogram:**
To find how many dollars correspond to 1 kilogram, divide the total cost by the total weight:

\[
\text{Dollars per kg} = \frac{8.49 \, \text{dollars}}{12 \, \text{kg}} = 0.7075 \, \text{dollars/kg}
\]

Rounding to the nearest hundredth:

\[
\text{Dollars per kg} \approx 0.71 \, \text{dollars/kg}
\]

### 2. **Kilograms per dollar:**
To find how many kilograms correspond to 1 dollar, divide the total weight by the total cost:

\[
\text{Kg per dollar} = \frac{12 \, \text{kg}}{8.49 \, \text{dollars}} = 1.4134 \, \text{kg/dollar}
\]

Rounding to the nearest hundredth:

\[
\text{Kg per dollar} \approx 1.41 \, \text{kg/dollar}
\]

### Final answers:
- **Dollars per kilogram**: 0.71 dollars/kg
- **Kilograms per dollar**: 1.41 kg/dollar

Would you like more details or have any questions?

---

Here are 5 questions to expand on this topic:
1. What if the cost was $10.49 for 15 kg? How would the unit rates change?
2. How do you calculate unit rates when the weight is given in pounds instead of kilograms?
3. What are the advantages of knowing unit rates in real-life situations?
4. How would the calculation change if you wanted to find the unit rate for grams per dollar?
5. How do rounding rules affect accuracy when dealing with unit rates?

**Tip:** When calculating unit rates, always ensure the numerator and denominator are in the correct units (e.g., dollars over kilograms or kilograms over dollars).

Find the unit rates. If necessary, round your answers to the nearest hundredth. $8.49 for 12 kg. Dollars per kg, kgs per dollar.

Learn how to calculate the unit rates for $8.49 and 12 kg, including dollars per kilogram and kilograms per dollar. This problem explores fundamental math concepts like unit rate calculations, division, and rounding to the nearest hundredth. Ideal for Grades 5-7.

Math Problem Statement

Solution

Ask a new question for Free

By Image

Math Problem Analysis

Mathematical Concepts

Formulas

Theorems

Suitable Grade Level

Related Recommendation