Ratios, Unit Rates, and Better Buy

There are 4 triangles, 12 squares, and 6 circles. What is the ratio of triangles to circles? Simplify.

• 6 : 4

• 2 to 3

• 1 : 3

• 4 : 12

Aubrey's movie collection consists of 45 romance movies and 31 comedy movies. What is the ratio of comedies to total movies?

• 31 : 76

• 31 : 45

• 45 : 76

• 45 : 31

Select all of the Unit Rates

• $6.50 per pound of ground beef

• 28 miles per hour

• 75 miles per gallon

• 200 students per 10 classrooms

What is the unit rate for the following situation:

Alice drives 250 miles in 5 hours. 

•  $\frac{250\ miles}{5\ hours}$ 

•  $\frac{50\ miles}{1\ hr}$ 
  

•  $\frac{125\ miles}{2.5\ hrs}$ 
  

•  $\frac{1\ hr}{50\ miles}$ 
  

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

• $6.50 per pizza

• $7.25 per pizza

• $5.75 per pizza

Cheerios 17 ounces for $3.60

or

Apple Jacks at $2.89 for 13 oz

Which is the better buy?

• Cheerios ($.21 per oz)

• Apple Jacks ($.22 per oz)

• Cheerios ($4.72 per oz)

• Apple Jacks ($4.50 per oz)

Goldfish crackers $1.80 for 7.2 oz.

or

Cheez-its $2.40 for 15 oz.

Find the unit price of each and choose the better deal.

• Goldfish ($0.25 per oz)

• Cheez-its ($0.16 per oz)

• Goldfish ($4 per oz)

• Cheez-its ($6.25 per oz)