ZZ: Ratios Rates Proportions Unit Review

Zach's dad owns a car wash. He pays Zach $350 a week. If Zach works 40 hours in a week, what is Zach's hourly pay rate?

• $8.75 per hour

• $7.25 per hour

• $12.50 per hour

• None of these

Eve spends the same amount each week on coffee from the coffee shop. In 4 weeks, Eve spent $8 on coffee. How much does Eve spend on coffee each week, and how much will she spend on coffee in 10 weeks?

• Eve spends $4 each week and will spend $40 in 10 weeks.

• Eve spends $8 each week, and will spend $80 in 10 weeks.

• Eve spends $2 each week, and will spend $20 in 10 weeks.

• Eve spends $5 each week, and will spend $50 in 10 weeks.

At the Bagel Bakery, the ratio of blueberry muffins sold to cinnamon muffins sold is 3 to 5. Which of the following could show the number of each kind of bagels that were sold yesterday?

• 23 blueberry muffins and 25 cinnamon muffins

• 15 blueberry muffins and 30 cinnamon muffins

• 18 blueberry muffins and 30 cinnamon muffins

• 25 blueberry muffins and 15 cinnamon muffins

In Mr. Brown's science lab, there is a large rock collection. It contains 12 metamorphic rocks, 30 sedimentary, and 52 igneous rocks. What is the ratio of metamorphic rocks to igneous rocks? (be sure to simplify)

• 6:15

• 3:13

• 13:3

• 27:6

In Shay's art pen collection, she has various shades of each major color. She has:

4 shades of blue

12 shades of tan or brown

24 shades of green

What is the ratio of blues to her total number of art pens?

• 2:30

• 1:9

• 1:10

• 1:3

Mr. and Mrs. Smith are planning a family trip to go on an Alaskan Cruise. Their budget is to spend less than $550 per person for tickets. Which cruise lines listed will fit into their budget? (choose all that apply)

Polar Cruise: $1200 for 2 tickets

Twilight Cruise: $1725 for 3 tickets

Princess Cruise: $2189 for 4 tickets

Fun Family Cruise: $2705 for 5 tickets

• Polar Cruise

• Twilight Cruise

• Princess Cruise

• Fun Family Cruise

Which number sentence could be used to find the number of screws needed to complete 4 shelves?

• 6 X 4 = ?

• 6 + 4 = ?

• ? - 4 = 6

• ? X 4 = 6

Which numbers could be used to complete the table correctly?

• 36, 8

• 24, 7

• 9, 21

• 21, 5

When a proportional relationship is graphed on the coordinate plane, what will always be true? (choose all that are true)

• The graph will intersect the y-axis at point (0, 1)

• The graph will intersect the y-axis at the origin (0,0)

• The graph will be slightly curved downward.

• The graph will form a straight line.

At the grocery store, Alan checked the prices for snack-sized chips. He can buy an 8-pack for $3.36; a 12-pack for $4.68; an 18-pack for $5.76; or a 24 pack for $7.89. Which is the better deal in cost per bag?

• The 8 pack is the better deal.

• The 12 pack is the better deal.

• The 18 pack is the better deal.

• The 24 pack is the better deal.