Unit 2B Ratio and Proportions (Percent Problems)

A soccer team lost 30% of its games. Suppose the team won 14 games. How many games did the team play?

• 20 games

• 420 games

• 4.2 games

• 47 games

A new radio is priced at $30. An electronics store has an end-of-the-year sale. All of the items in the store are discounted by 40%. What is the sale price of the radio?

• 7.5

• $12

• $18

• 5

A book costs $20. The sales tax is 6%. What is the price of the book after the sales tax is added?

• 1.2

• 12

• 32

• 21.20

Sheri and Tim are both selling raffle tickets at a volleyball tournament. The table shows the total number of raffle tickets Sheri sold at different times of the day.

Tim uses the equation t = 14h to show the number of tickets, t, he has sold after h hours. Which statement about Sheri and Tim is TRUE?

• The rate that Tim sells raffle tickets is half the rate that Sheri sells raffle tickets.

• The rate that Tim sells raffle tickets is double the rate that Sheri sells raffle tickets.

• The rate that Sheri sells raffle tickets is 7 times the rate that Tim sells raffle tickets.

• The rate that Sheri sells raffle tickets is the same as the rate that Tim sells raffle tickets.

Is the relationship between the distance traveled and the time shown in the graph proportional? Explain.

Which of the following ordered pairs represents the unit rate? Explain the meaning of the unit rate in the context of the graph.

• (0, 0)

• (1, 1.25)

• (2, 2.5)

• (4, 5)

Albert (A) went running and Tanisha (T) walked for exercise each day after work. Their times and distances are shown in the graph. How fast was Albert?

• 1 mile per hour

• 2 miles per hour

• 10 miles per hour

• 20 miles per hour

Albert (A) went running and Tanisha (T) walked for exercise each day after work. Their times and distances are shown in the graph. How fast was Tanisha?

• 3 mile per hour

• 2 miles per hour

• 10 miles per hour

• 20 miles per hour

Albert (A) went running and Tanisha (T) walked for exercise each day after work. Their times and distances are shown in the graph. Who was faster?

• Albert

• Tanisha

The graph shows the distance, in meters, that Anthony can run in minutes. What is the constant of proportionality for the data represented in the graph?