Exploring Ratios and Rates for STAAR Success

The video tutorial reviews ratios and rates through various problems. It starts with Monique's earnings based on hours worked, followed by Megan and Desmond's aquarium chemical solution comparison. The tutorial then covers bats' insect consumption, water leakage from a barrel, a scuba diver's descent, and Diego's punch preparation. Each problem involves using proportions to find solutions, emphasizing the practical application of ratios and rates.

If Monique worked 40 hours in a week, how much would she earn?

• $247.50

• $330

• $255.75

• $165

What is the simplified ratio of Desmond's chemical solution to water?

• 2 to 1

• 4 to 1

• 5 to 1

• 8 to 2

Who used more solution per gallon of water?

• Cannot be determined

• Both used the same

• Desmond

• Megan

How many grams of insects can 64 bats eat in one night?

• 320 grams

• 420 grams

• 840 grams

• 640 grams

If 5 gallons of water leak out every 3 days, how many days will it take for 60 gallons to leak out?

• 36 days

• 30 days

• 45 days

• 24 days

What is the rate of descent for the scuba diver?

• 10 feet every 24 seconds

• 7 feet every 14 seconds

• 6 feet every 15 seconds

• 5 feet every 12 seconds

How many seconds did it take for the scuba diver to reach 70 feet?

• 168 seconds

• 140 seconds

• 120 seconds

• 200 seconds

If Diego uses 9 cups of concentrate, how many cups of punch will he make?

• 40 cups

• 30 cups

• 24 cups

• 36 cups

What is the ratio of cups of concentrate to cups of punch?

• 4 to 16

• 3 to 12

• 2 to 8

• 1 to 4

If 3 cups of concentrate make 12 cups of punch, how many cups of punch will 6 cups of concentrate make?

• 30 cups

• 18 cups

• 24 cups

• 20 cups