Proportions and Ratios in Real Life

This video tutorial covers lesson 7.2 on applying ratio and rate reasoning from the 6th grade Go Math textbook. It explains the concept of proportions, which are equations stating that two ratios or rates are equivalent. The video provides several examples, including calculating business profits, determining pizza order quantities, and using rates to solve real-world problems. It also covers using proportional relationships to find distances on maps and solving various real-world problems using proportions.

What is a proportion?

• A method to solve algebraic equations

• A comparison of two different units

• An equation that states two ratios or rates are equivalent

• An equation that states two ratios are different

If Sheldon makes $2 for every $5 Leonard makes, what is the ratio of Sheldon's profit to the total profit?

• 2 to 3

• 5 to 7

• 2 to 7

• 2 to 5

In the PTA pizza order problem, what is the ratio of cheese pizzas to total pizzas?

• 2 to 3

• 3 to 5

• 2 to 5

• 3 to 2

How many cheese pizzas will be ordered if the PTA orders a total of 25 pizzas?

• 20

• 15

• 10

• 5

Ali runs 3 miles in 40 minutes. How far can he run in 60 minutes?

• 4 miles

• 5.5 miles

• 4.5 miles

• 5 miles

What is the multiplier used to find the equivalent rate for Ali's running distance?

• 1.5

• 3

• 2

• 2.5

How long does it take to water the entire lawn with 10 sprinklers if 4 sprinklers run for 50 minutes?

• 150 minutes

• 125 minutes

• 100 minutes

• 175 minutes

What is the scale used in the map distance problem?

• 1 inch equals 5 miles

• 1 inch equals 10 miles

• 1 inch equals 2 miles

• 1 inch equals 1 mile

If the distance between two points on a map is 3 inches, what is the actual distance?

• 3 miles

• 4 miles

• 6 miles

• 5 miles

What is the actual distance between Sandville and Lewiston if the map distance is 2.5 inches?

• 50 miles

• 45 miles

• 40 miles

• 55 miles