Rates, Proportions, Graphs, Equations

Last year, your team bought 11 baseball caps for $55. This year, the cost per cap is the same. Write a proportion that gives the cost c of buying 15 baseball caps.

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• 
• 
• 

Solve the proportion.

• 21

• 0.7

• 8.8

• 8

You are planning a party. Your friend tells you how much she paid for five party grab bags. How much will it cost you to buy eight of the grab bags for your party?

• $31.50

• $140.00

• $45.50

• $28.00

Do graphs of proportional equations always contain the point (0, 0)?

• Yes

• No

• It depends

You have to survey other students for a project. You survey 76 students in 2 school days. Your friend surveys 114 students in 3 school days. Are these rates proportional?

• Yes

• No

• It depends

The graph shows the distance a plane travels. What does the point (2, 10) on the graph represent?

• The plane travels 2 miles in 10 minutes.

• The plane travels 10 miles in 1 minute.

• The plane travels 10 miles in 2 minutes.

• The plane does not travel at a constant rate.

The cost for 2 lbs of apples is $1.84. Reduce the ratio to determine the equation, where x is the lbs of apples and y is the cost.

• y = .92x

• x = .92y

• y = 2x

• y = 1.84x

Please solve this equation

1.2x = 9.6

• x = 8

• x = 10.8

• x = 8.4

• None of these match my answer

Please solve this equation

7x = 84

• x = 77

• x = 91

• x = 588

• None of these match my answer

Please solve this equation Melanie and Julian have 50 dinosaurs in total. Julian has 21 dinosaurs. How many dinosaurs does Melanie have?

• g = 29

• g = 71

• g = 1050

• None of these match my answer