Unit 11: Ratio & Proportions

1. Mrs. Neary bought a leaf-blower that was 19% off the original price. If Mrs. Neary saved $40, what is the best estimate of the original price of the leaf-blower?

• $50

• $200

• $100

• $80

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.2

CCSS.7.RP.A.3

3. The arena at the Berry Center holds 9,500 people.  During one of the graduation ceremonies, 95% of the seats were occupied.  How many people attended the ceremony?

• 950
• 8,550
• 9,025
• 9,500

Tags

CCSS.6.RP.A.3C

10b. Mr. Linh took his family out for dinner. The dinner cost $85. He always leaves a 20% tip.  What is the total amount Mr. Linh spent on dinner and a tip?

• $95.80
• $105.00
• $17.00
• $102.00

Tags

CCSS.6.RP.A.3C

The snow is now 72 inches deep. If this was a 58% decrease, which expression below represents the initial depth?

• .58x = 72

• .42x = 72

• 1.42x = 72

• 1.58x =72

Tags

CCSS.7.EE.A.2

CCSS.7.EE.B.3

CCSS.7.EE.B.4

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Yesterday, The snow was 112 inches. If this was a 23% increase of yesterday's depth, which expression below represents today's depth?

• .77x = 112

• .23x = 112

• 1.23x = 112

• 1.77x =112

Tags

CCSS.7.EE.A.2

CCSS.7.EE.B.3

CCSS.7.EE.B.4

CCSS.7.RP.A.2

CCSS.7.RP.A.3

A dessert recipe calls for $3\frac{1}{2}$  cups of milk and makes 5 servings. How many cups of milk are needed for 8 servings?

• 5 and 1/6

• 2 and 1/4

• 4 and 2/3

• 5 and 1/3

Tags

CCSS.7.EE.B.3

CCSS.7.NS.A.2

CCSS.7.RP.A.2

CCSS.7.RP.A.3

What is the constant of proportionality for the data represented in the graph? [HINT: COP is the ratio of the amounts y and x, so: k = y/x and y = kx]

• 1/6

• 6

• 1/5

• 5

Tags

CCSS.7.RP.A.2

A football is $30. You have a coupon for 20% off or $5 off, which is a better deal?

• 20% off

• $5 off

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.3

A laptop is $2,432.

Deal One: Half Price ~ Today Only

Deal Two: 52% off

Deal Three: $1,261 off

Deal Four: 51% off

• Deal One: Half Price ~ Today Only

• Deal Two: 52% off

• Deal Three: $1,261 off

• Deal Four: 51% off

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.3

Coca-Cola $1.29 for 1.25 L 
or
Pepsi $2.49 for 2L
Find the unit price of each and choose the better deal.

• Pepsi
• Coca-Cola

Tags

CCSS.6.RP.A.3B