Ratios, Rates, Unit Rate and Proportions

Each pack of paper has 125 sheets. Which teacher had the better buy?

• Ms. Perry bought 3 packs for $14.00

• Ms. Demarino bought 4 packs for $20.00

• Ms. Gombos bought 8 packs for $27.00

• Ms. Palermo bought 10 packs for $35.00

Sara drives 330 miles in 5 hours. What’s her rate?

• 650 miles per hour

• 335 miles per hour

• 66 miles per hour

A watermelon cost $3.24 for 3 pounds, what is the cost per pound?

• $9.72

• $1.08

• $6.24

A store has 120 customers in 6 hours. What is the unit rate in customers per hour?

• 16 customers per hour

• 12 customers per hour

• 20 customers per hour

• 15 customers per hour

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

It cost me $46.80 to fill my 13-gallon gas tank. What was the price of gas per gallon?

• $3.60

• $3.55

• $3.40

• $3.50

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

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

Waldo spent $75 on 5 chicken dinners for his family. What was the unit rate for each dinner?

• $15 per dinner

• $9 per dinner

• $12 per dinner

• $8 per dinner

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90