Ratios, Rates, and Proportions

Ratios can be represented as...

(Select ALL answers that apply!)

• A/B

• A to B

• A : B

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

We can tell if ratios are proportional by...

• top times top, bottom times bottom

• flipping the second and multiplying

• Cross Multiplying (Butterfly!!!)

Tags

CCSS.7.RP.A.2A

True or False

We can compare ratios as part to part or part to whole.

• True

• False

Tags

CCSS.6.RP.A.3A

If we have the fraction 18/27, which answer choice is simplified as much as possible?

• 18/27

• 2/3

• 6/9

Are

4/6 & 1/2

equivalent?

• YASSSS

• Nope.

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

You can buy 1 can of juice for $2.00 or 4 cans of juice for $6.00. Are these

ratios equal?

• Yup.

• No.

Tags

CCSS.6.RP.A.3A

Select ALL proportions that are set up correctly.

• 
• 
• 

Tags

CCSS.7.RP.A.3

Megan and Desmond each added the same amount of water to their aquariums. Megan mixed 5 mL of a chemical solution with every gallon of water for her aquarium. Desmond mixed 8 mL of the chemical solution with every 2 gallons of water for his aquarium.

Which of these statements is true?

• Megan used more solution per gallon of water than Desmond, because 5:1 is greater than 8:2.

• Desmond used more solution per gallon of water than Megan, because 8 mL is greater than 5 mL.

• Megan used more solution per gallon of water than Desmond, because 5 mL is greater than 2 mL.

• Desmond used more solution per gallon of water than Megan, because 8:2 is greater than 5:1.

Tags

CCSS.6.RP.A.3A

In Austin, Texas, 8 bats ate 40 grams of insects in one night. At this rate, how many grams of insects could 64 bats eat in one night?

• 5 grams

• 320 grams

• 512 grams

• 12.8 grams

Tags

CCSS.6.RP.A.3B

A barrel contained 60 gallons of water. Water leaked out of the barrel at a rate of 5 gallons every 3 days.

At this rate, how many days did it take for all 60 gallons of water to leak out of the barrel?

• 20 days

• 12 days

• 100 days

• 36 days

Tags

CCSS.7.EE.B.3