Ratios and Unit Rate Pretest

What is the most important thing you need to know about ratios and rate?

• The biggest number is always first.

• For unit rate, you always compare it to "2'.

• The smallest number is always first.

• The order of the numbers matters.

Is this statement correct?
"There are 5 hamburgers sold for every 7 tacos in the cafeteria."  The ratio of hamburgers to tacos is 5:7.

• True

• False

Is this statement correct?
"There are 9 pet snakes for every 2 hamsters in the pet store." The ratio of snakes to hamsters is 2:9.

• True

• False

Is this statement correct?
"There are 10 passing AR tests for every 15 taken." The ratio of passing tests to tests taken is 2:3.

• True

• False

What is a Ratio?

• Is a comparison of two quantities 

• A rate with a denominator of one

• It is when the only factor the numerator and denominator share is a one 

• Two decimals that can be multiplied

What is a Ratio?

• a comparison of two quantities

• it is when the only factor that the numerator and denominator share is one

• a rate when the denominator is one

• two random numbers

What is a Ratio?

• Is a comparison of two quantities

• A rate with a denominator of one

• It is when the only factor the numerator and denominator share is a one

• Two decimals that can be multiplied

irections: Find each unit rate. Round your answer to the nearest hundredth:​ (a)  

7 penguins for $126.00 ________ each

• $18

• $24

• $4

• $10

Find each unit rate. Round your answer to the nearest hundredth:​ (a)  

11 chickens lay 77 eggs _________eggs per chicken

• 7

• 22

• 30

• 10

A unit rate is a ratio in which the second quantity is 1.

• True

• False