Proportionality Unit Test Review Part 2

A recipe for apple cider calls for 4 cups of apple juice and 3 cups of water. Which equation can be used to find x, the percent of apple juice in the recipe

• 4/3 = x/100

• 3/4 = x/100

• 7/3 = 100/x

• 4/7 = x/100

A gear rotates 6 times every 15 seconds. Based on this information, which of the following could not be true?

• The gear rotates 30 times in 90 seconds

• The gear rotates 24 times in one minute

• The gear rotates 18 times in 45 seconds

• The gear rotates 12 times in 30 seconds

What is the ratio of hashtags to percent signs? (in simplest form)

##### %%%%

#### %%

• 6:4

• 4:6

• 3:2

• 2:3

What is the ratio of hashtags to all the symbols? (in simplest form)

##### %%%%

#### %%

• 3:5

• 9:15

• 15:9

• 5:3

What is the ratio of percents to hashtags? (in simplest form)

##### %%%%

#### %%

• 6:9

• 9:6

• 2:3

• 3:2

What percent of the symbols are percents?

##### %%%%

#### %%

• 42%

• 235%

• 23%

• 40%

Mr. Robins earns a commission on each airfare he books. At the end of the day, he had booked $208.60 worth of airfare and earned $31.29. Approximately what is Mr. Robins' commission rate?

• 10%

• 15%

• 8.5%

• 7%

Of the 650 students at Westmoreland Junior High, 4% will receive a perfect attendance award. How many students will receive the award?

• 26

• 25

• 24

• 23

A wise financial principle states that no more than 30% of your income should be your rent. Which equation can be used to find x, the amount Emilio should spend on rent if he brings home $2000 per month?

• 30/100 = 2000/x

• 30/2000 = 100/x

• 2000/100 = 30/x

• 30/100 = x/2000

A gym membership is offered in January for $29.00 per month. If you pay upfront for the year, you are given a 20% discount. How much money do you save by paying upfront rather than monthly?

• 59.89

• $69.60

• 69.30

• 52.83