Ratios Rates Fractions

In a room, there are 8 boys to 12 girls.  What is the ratio of girls to boys?

• 8 : 20
• 12 to 20
• 3 to 2
• 4/6

A pet store has 8 dogs, 12 turtles, and 3 cats.  What does the ratio 8 : 23 compare?

• cats to turtles
• dogs to all animals
• dogs to cats
• turtles to all animals

If Jack earns $46.80 for 6 hours of work, what is his rate of pay?

• $6.80 per hour
• $46.80 per week
• $62.00 per day
• $7.80 per hour

What is a Ratio?

• Is a comparison of two quantities 
• To multiply two fractions 
• A number over another number
• Two decimals that can be multiplied

What is unit rate?

• A comparison of 2 values.

• A rate with a denominator as 1. The amount per single unit.

• A rate with a denominator as 10.

• A rate that shows you how much you pay per dollar.

Which of the following is NOT a unit rate?

• ^{2 cars}

  1 lane

• 45 miles per hour

• 27 sandwiches in 3 weeks

• 2 tanks of gas

  1 yard

It takes a machine 18 minutes to fill 300 packages of candy. At this rate, how many minutes will it take the machine to fill 500 packages of candy?

• 30 minutes

• 32 minutes

• 33 minutes

• 35 minutes

One slice of pizza had 4 olives, 2 pieces of pepperoni, 2 onions and 3 mushrooms. What is the ratio of pepperoni to onions on this slice?

• 4:3

• 2:3

• 1:1

• 4:1

Soda is on sale 4 packs for $10. What is the unit rate? (i.e. how much is each pack)

• $4.10

• $2.50

• $1.67

• $0.40

Write the decimal as a fraction.
0.8

• 3/5
• 5/6
• 4/5
• 5/7