Ratios and Unit Ratio

What is the ratio of red apples to green apples

• 7 apples to 3 green
• 4 red apples to 7 apples
• 4 red apples to 3 green apples
• 3 green apples to 4 red apples

Ella has 5 balloons. Taylor has 7 balloons. Write the ratio of Ella's balloons to Taylor's balloons.

• 7:5
• 5:7
• 3:5
• 5:3

Mrs. Shelly paid $3 for 6 muffins and Mrs. Kloske paid $9 for 18 muffins.  

• yes, equivalent
• no, not equivalent

$15 for 5 pairs of socks; $25 for 10 pairs of socks. Are the ratios equivalent?

• yes, equivalent
• no, not equivalent

Simplify the ratio of
20 to 25

• 1 to 5
• 2 to 5
• 3 to 5
• 4 to 5

What is a rate?

• A comparison of quantities, using division (2:3, 2/3, 2 to 3)

• A ratio of quantities with different units (ex: 60 miles / 3 hours)

• A rate with a denominator of one (ex: 20 miles / 1 hour)

What is a unit rate?

• A comparison of quantities, using division (ex: 2:3, 2/3, 2 to 3)

• A ratio of quantities with different units (ex: $10.00/5 sodas

• A rate with a denominator of one (ex: $2.00/1 soda)

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound
• $5 per pound
• $35 per pound
• 0.125 pounds per dollar

Elijah earn $200 for 8 hours of work. What is the unit rate (in dollars per hour)?

• $50 per hour
• $12 per hour
• $192 per hour
• $25 per hour

A store sees 120 customers in 8 hours. What is the unit rate (in customers per hour)?

• 16 customers per hour
• 15 customers per hour
• 12 customers per hour
• 20 customers per hour