Cost and Rate Calculations

This video tutorial covers Unit 2 Lesson 11 on representing ratios with tables. It includes exercises on calculating equivalent ratios using paint mixtures, determining travel distance using ratios, calculating olive oil production, understanding adult-to-child ratios on a playground, comparing heart rates during activities, and finding cost per item at a market.

What is the equivalent ratio of 5:6 when both numbers are doubled?

• 20:24

• 15:18

• 25:30

• 10:12

If a car travels 140 kilometers in 2 hours, how far will it travel in 14 hours?

• 700 kilometers

• 840 kilometers

• 980 kilometers

• 1120 kilometers

How many liters of olive oil can be produced from 3000 pounds of olives if 20 pounds make 3 liters?

• 300 liters

• 450 liters

• 600 liters

• 750 liters

How many adults are needed for 72 children on the playground if the ratio is 2 adults for every 24 children?

• 8 adults

• 5 adults

• 6 adults

• 4 adults

What is Jada's heart rate while jogging if her heart beats 25 times in 10 seconds?

• 120 beats per minute

• 150 beats per minute

• 160 beats per minute

• 180 beats per minute

What is the cost per ear of corn if 6 ears cost $1.80?

• $0.20

• $0.30

• $0.35

• $0.25

How much does each apple cost if 12 apples are priced at $2.88?

• $0.28

• $0.24

• $0.20

• $0.32

If 5 tomatoes cost $3.10, what is the cost per tomato?

• $0.82

• $0.72

• $0.62

• $0.52

If 10 tomatoes cost $6.20, what is the cost per tomato?

• $0.82

• $0.52

• $0.62

• $0.72

What is the total cost for 8 ears of corn if each ear costs $0.30?

• $3.20

• $2.80

• $2.00

• $2.40