Unit rates

key notes :

Unit Rates 📊🚴‍♂️💰

Definition of Unit Rate 🧐

A unit rate compares two quantities but the second quantity is always 1.

Example: If 60 km is traveled in 2 hours, the unit rate is 30 km per 1 hour.

✅ Formula:

Unit Rate = Quantity 1/Quantity 2

Common Units Used in Unit Rates ⏱️💵

Speed: km/h, m/s, mi/h 🚗

Price: $ per item, ₹ per kg 🛒

Density: people per square km, objects per liter 👥

Steps to Find Unit Rate 📝

Write down the quantities to compare.

Make sure the second quantity is 1.

Divide the first quantity by the second.

Include the correct unit.

Examples 🌟

Example 1 (Speed): 150 km in 3 hours → 150 ÷ 3 = 50 km/h

Example 2 (Price): 200 ₹ for 5 kg → 200 ÷ 5 = 40 ₹/kg

Tips & Tricks 💡

Always check the units before calculating.

If the second quantity is not 1, divide both numbers by the second quantity.

Unit rates help compare different products or situations easily.

Real-Life Uses 🌍

Comparing prices in the supermarket 🛒

Calculating speed while traveling 🚀

Measuring efficiency (like fuel consumption ⛽)

Quick Formula Reminder ⚡

Unit Rate = Total Quantity/Number of Units

Learn with an example

Let’s Practice!