Ratios, Rates, Proportions, and Percents

A town’s population went from 500 to 850 in 10 years. What was the percent of change?

• 44%

• 55%

• 70%

• 62%

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Walmart marks up sporting goods 27%.

What is the retail price of an item with an original cost of $100?

• $120

• $125

• $127

• $130

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

A market buys mixed nuts at $12.50 per pound. They want to make a 22% profit.

What should they charge for the retail price?

• $2.75 lb

• $9.75 lb

• $15.25 lb

• $34.50 lb

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.2

CCSS.7.RP.A.3

A roll of wire holds 3 meters of wire. About how many inches of wire does the roll hold if 1 inch = 2.54 centimeters?

(1 meter = 100 centimeters) Round to a whole number.

• 76 inches

• 92 inches

• 88 inches

• 118 inches

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.3

The picnic committee bought 30 liters of lemonade. There were 4 liters left over.

How many gallons of lemonade were used at the picnic if 1 gallon = 3.79 liters? (Round to the nearest tenth)

• 6.9 gallons

• 7 gallons

• 8.5 gallons

• 5.9 gallons

Tags

CCSS.7.EE.B.3

CCSS.7.NS.A.3

Find k, the constant of proportionality, for the data in this table.

Then write an equation for the relationship.

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

Ryan went on a weekend hike in the mountains.

What is his constant of proportionality in miles per hour (mph)? k = ?

• 4 mph

• 2 mph

• 1/2 mph

• 8 mph

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

A student spends the same amount each week for bus fare. In 5 weeks, he spends $115. Which equation shows this relationship? Let x = number of weeks.

• y = 3.22x

• y = 5x

• y = 23x

• y = 115x

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

Draw a line through the points. Why does this line show a proportional relationship?

• It is not curved.

• It is a vertical line.

• It connects all the dots.

• It goes through the origin.

Tags

CCSS.7.RP.A.2

The ratio of band members to football players is 3 to 1. There are 144 band members at the school.

How many students are football players?

• 54

• 48

• 36

• 40

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3