Chapter Test Rates, Ratios, Proportions

What is true about the shape and size of similar figures?

• Same shape and same size

• Same shape and not the same size

• Different shape and same size

• Different shape and not the same size

Solve for x

• x=6

• x =1/6

• x = 7

• x=9

Use the ratio table to find the unit rate:

cost per song

• $1.01 per song

• $1.98 per song

• $0.99 per song

• $3.96 per song

Write the ratio as a fraction in simplest form (use the "/" for the fraction bar):

18 red buttons to 12 blue buttons

Answer explanation

You needed to divide both numbers by 6.

Find the unit rate:

84 miles in 12 days

• 7 miles per day

• 7 days per mile

• 72 miles per day

• 0.1428 miles per day

Does this graph represent a proportional relationship?

• Yes

• No

Answer explanation

Straight line and through the origin (0, 0)!

• x = 11

• x = 9

• x = 8.5

• x = 7

Meagan went to the store and paid $4.41 for 9 pounds of bananas. Rylee went to another store and paid $3.57 for 7 pounds of bananas. Who paid more per pound?

• Meagan paid more by $0.08 per pound

• Meagan paid more by $0.02 per pound

• Rylee paid more by $0.02 per pound

• Rylee paid more by $0.08 per pound

Tell whether the two rates form a proportion: 75 miles in 3 hours; 140 miles in 4 hours

• Yes, because the unit rates are both 35 mph

• Yes, because the unit rates are both 25 mph

• No, because the first unit rate is 25 mph while the second unit rate is 35 mph

• No, because the first unit rate is 35 mph and the second unit rate is 25 mph

Answer explanation

Miles divided by hours gives you mph

You can download 2 mb of data in 6 seconds. Write a proportion that gives you the number of seconds "s" it takes to download 22 mb of data.

Answer explanation

Did you write down your numbers AND define what you were comparing??