Real-World Applications of Ratios and Rates

Mr. Richards reviews various math problems, including calculating the value of pennies collected by Priya, determining reading time for Karen, calculating cheese for Mae's pizzas, figuring out Claire's earnings per second, comparing car speeds, and understanding equivalent ratios in Lynne's juice blend. Each problem is solved using logical steps and mathematical calculations.

If each penny weighs 2.5 grams, how many pennies did Priya collect to reach a total of 2400 grams?

• 1200

• 1000

• 1500

• 960

How much money did Priya raise if she collected 960 pennies?

• $15.00

• $10.00

• $9.60

• $12.00

How long does it take Karen to read one page if she reads 5 pages in 20 minutes?

• 2 minutes

• 3 minutes

• 4 minutes

• 5 minutes

If Karen reads at the same pace, how long will it take her to read 11 pages?

• 40 minutes

• 50 minutes

• 44 minutes

• 48 minutes

How much cheese does Mae use per pizza if she uses 10 ounces for 4 pizzas?

• 3.5 ounces

• 3 ounces

• 2.5 ounces

• 2 ounces

How many ounces of cheese does Mae need for 15 pizzas?

• 40 ounces

• 37.5 ounces

• 35 ounces

• 30 ounces

How much does Claire earn per hour if she makes $90 for 5 hours of work?

• $17

• $16

• $18

• $15

How many seconds does it take Claire to earn 25 cents?

• 55 seconds

• 40 seconds

• 45 seconds

• 50 seconds

Which car travels at the same speed: one that goes 20 miles in half an hour or one that goes 30 miles in 3/4 of an hour?

• First car

• Second car

• Neither car

• Both cars

What is the equivalent ratio of 600 over 450?

• 4/3

• 5/3

• 7/3

• 6/3