Grade 8 - Number
Standard 8.N.4 - Find the unit rate to solve the equation.
Included Skills: Ratios
Demonstrate an understanding of ratio and rate. • Express a two-term ratio from a given context in the forms 3:5 or 3 to 5. • Express a three-term ratio from a given context in the forms 4:7:3 or 4 to 7 to 3. • Express a part to part ratio as a part to whole fraction; e.g., frozen juice to water: 1 can concentrate to 4 cans of water can be represented as 1/5, which is the ratio of concentrate to solution, or 4/5, which is the ratio of water to solution. • Identify and describe ratios and rates (including unit rates) from real-life examples, and record them symbolically. • Express a given rate, using words or symbols; e.g., 20 L per 100 km or 20 L/100 km. • Express a given ratio as a percent, and explain why a rate cannot be represented as a percent.