Ratio, Rates, Proportions

The table shows the numbers of different animals at a petting zoo. Express the ratio in the simplest form that compares the number of goats to the total number of animals.

• 6:15

• 2:5

• 15:6

• 5:2

The ratio of boys to girls in the 6th grade band is 3:5. Based on this ratio, how many boys are in the band if there are 75 girls.

• 45

• 125

• 100

• 50

Nathaniel can run 3 laps in the gym in 2 minutes. If Nathaniel continues to run at the same rate, which of the graphs best represents his progress?

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To make a particular strength of lemonade, you must mix 12 parts of lemonade concentrate to 21 parts of water. To maintain the taste, this ratio must stay the same.

How much water is needed for 16 parts of lemonade concentrate?

The amount of eggs and the cups of cream needed to make egg nog have a proportional relationship. Complete the table.

• 5/1 & 5/1

• 10/2 & 25/5

• 1/5 & 1/5

• 2/10 & 5/25

A dolphin travels through the water of a speed of 25 kilometers per hour. Which representation shows the distance a dolphin can travel at this rate? (7.4A)

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At a bus station, busses depart at a rate of 3 every 10 minutes. At this rate, how many busses would depart in one hour?

• 3 busses

• 10 busses

• 13 busses

• 18 busses

Match the vocabulary.

• rate

• A proportion is made of two ------- ------

• ratio

• A unit rate is the rate at which two values grow consistently. It is also called the ----- -- ---------

• equivalent fractions

• A relationship of two values is called a

• constant of proportionality

• A ratio that compares numbers with two differnt units (labels) it is called

At a bus station, busses depart at a rate of 3 every 10 minutes. At this rate, how many busses would depart in one hour?

• 3 busses

• 10 busses

• 13 busses

• 18 busses

Your answer must be in SIMPLEST FORM.

• 1/3 c. orange juice to 1 serving of fruit smoothie

• 6/5 c. orange juice to 1 serving of fruit smoothie

• 6/15 c. of fruit smoothie/1 c. orange juice

• 2/5 c. orange juice to 1 serving of fruit smoothie