Ratios and Proportions

What was Brian's unit rate?

• 30 words per minute

• 30 minutes per word

• 60 minutes per word

• 3/2 word per minute

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

Is the graph proportional or non proportional?

• proportional
• non proportional

Simplify the ratio of

20 to 25

• 1 to 5

• 4 to 5

• 3 to 5

• 2 to 5

Define Ratio

• A comparison of two quantities by division.
• A statement that two ratios are equivalent.
• Two quantities with different units.
• A rate with a second quantity of 1 unit.

Find the unit rate.

Hannah reads 5/ 8 page in 2/3 minute

• 5/8 pages per minute

• 10/24 pages per minute

• 15/16 pages per minute

• 16/15 pages per minute

If a snail can move 3/10 of a meter every 1/12 hour, what is the speed of the snail, in meters per hour?

• 1/40
• 5/18
• 1 1/2
• 3 3/5

1 kilometer = 1,000 meters

Convert 12 km to m

• 120 m

• 1,200 m

• 120,000 m

• 12,000 m

Is this table proportional or non-proportional?

• Proportional

• Non-Proportional

Define rate

• A scale that represents a larger or smaller object in 2D.
• Ratio with a second quantity of 1 unit.
• A ratio of 2 quantities with different units.
• 2 quantities are equal but use different units of measure.