A ratio with a denominator of 1. Per means “for each unit.” A unit rate is: A unit cost is: You can use proportions to find the unit rate and unit cost of an item. * Always round money to the nearest cent (if the answer is not exact money). Examples: Write a ratio for each unit rate. 1. 23 miles per gallon 2. $55 an hour for repairs Find the unit rate for each ratio. 3. 6 servings in 3 cups 5. 60 ounces in 5 boxes 4. $21 for 6 tickets 6. $52 for 8 hours A ratio with a denominator of 1. Per means “for each unit.” The cost of one unit of an item

Price Comparison – you can find the better buy by: Find the unit prices for each. Compare. Circle the better buy. 7. Which is the better buy? 2 boxes for $5.00 OR 4 boxes for $10.20 8. Which is the better buy? 6 oranges for $2.10 OR 5 oranges for $2.00 9. Sam could buy a 2-lb bag of apples for $1.58 or a 3-lb bag of apples for $1.95. How much would Sam save per pound if he bought the bag that was the better buy? Comparing unit prices