Rates Proportions and Applications

What are some real-life examples where multiplication is used to calculate quantities, measurements, areas, volumes, or rates?

• By understanding the application of multiplication in various contexts such as shopping, cooking, construction, finance, and science

• By promoting misunderstanding

• By finding patterns and relationships in numerical data

• By avoiding practical applications

What are some real-life examples where division is used to calculate quantities, measurements, rates, averages, or proportions?

• By finding patterns and relationships in numerical data

• By avoiding practical applications

• By understanding the application of division in various contexts such as budgeting, recipe conversions, speed calculations, and statistical analysis

• By promoting misunderstanding

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $35 per pound

• $5 per pound

• $0.125 per pound

Water flows from a faucet at a rate of 5 gallons every 25 seconds. At this rate, how many gallons will flow from the faucet in 45 seconds?

• 9 gallons

• 5 gallons

• 11 gallons

• 40 gallons

Will spent $3.75 for 3 pounds of granola. What is his unit rate in dollars per pound?

• $.50 per pound

• $1.25 per pound

• $3 per pound

• $2.50 per pound

A cashier at the grocery store rung up 2 customers in 8 minutes. At this rate, how many customers can he ring up in 30 minutes?

• 16 customers

• 10.5 customers

• 7.5 customers

• 14 customers

After 3 hours, Ernie had travelled 195 miles. If he travels at a constant speed, how far will he have travelled after 5 hours?

• 400 miles

• 325 miles

• 575 miles

• 650 miles

You're throwing a party, and you ordered 15 pizzas for your guests. Your total came to $97.50. What was your unit cost per pizza?

• $4.95 per pizza

• $5.75 per pizza

• $7.25 per pizza

• $6.50 per pizza

A rate is a ratio that compares

• A part to a part

• A part to a whole

• Quantities with different units

• Quantities with the same units

A unit rate is a rate in which the unit in the denominator is:

• 0

• 3

• 1

• 2