Grade 6 Ratios & Rates: Unit Rates

Worked examples

Real problems from the practice worksheets, solved one step at a time.

1. Example 1

   If 3 items cost $19, what is the unit rate (cost per item)? Round to the nearest cent.

   1. The unit rate is the cost of ONE item, so divide the cost by the number of items: $19 ÷ 3.
   2. 19 ÷ 3 = 6.333…, which rounds to 6.33 (the nearest cent).
   3. So the unit rate is $6.33 per item.

   Answer: $6.33

2. Example 2

   If 5 items cost $66, what is the unit rate (cost per item)?

   1. The unit rate is the cost of ONE item, so divide the cost by the number of items: $66 ÷ 5.
   2. 66 ÷ 5 = 13.2.
   3. So the unit rate is $13.20 per item.

   Answer: $13.20

3. Example 3

   If 4 items cost $35, what is the unit rate (cost per item)?

   1. The unit rate is the cost of ONE item, so divide the cost by the number of items: $35 ÷ 4.
   2. 35 ÷ 4 = 8.75.
   3. So the unit rate is $8.75 per item.

   Answer: $8.75