Rates Ratios and Proportions Study Guide

What is the ratio of red crewmates to total crewmates? (Select all that apply)

• 4 to 12

• 1/3

• 12:4

• 4:12

• 12 to 4

21 out of 36 students studied using Quizizz. What is the ratio of students who used Quizizz to those that did not? Simplify.

• 7:12

• 12:7

• 5:7

• 7:5

Simplify the ratio and write it using a colon ( : )

8 to 12

• 8/12

• 2:3

• 2/3

• 8:12

• 2 to 3

What is the definition of a RATIO?

• A fraction.

• A comparison of two numbers using division.

• Equivalent proportions with like-units

• An unknown quantity in an equation

Ratios can be written using... (select all that apply)

• fraction form

• exponents

• colon ( : )

• in words using "to"

• Brackets [ ]

True or False: ratios can be simplified similar to simplifying fractions.

• True. You can divide the numerator and denominator by a common factor.

• False. Ratios are not the same thing as fractions.

Select the correct forms of the sandwich to chip ratio

• 2 to 9 ---- 2:9 ---- 2/9

• 2 to 9 --- 9:2 --- 9/2

• 9 to 2 --- 9:2 --- 9/2

• 2 to 9 --- 2:9 --- 9/2

What is the definition of RATE?

• An improper ratio

• A ratio comparing a part of a whole group

• A mixed ratio

• A ratio of two numbers that have different units

What is the definition of UNIT RATE?

• A rate comparing a fractional part and a whole

• A rate comparing a number and 1

• A mixed ratio

• A rate involving distance

To find the unit rate...

• Use division to change a number to 1. Use the same division on the other number in the ratio.

• Use multiplication to write an equivalent fraction

• Find the greatest common factor of the numerator and the denominator.

• Divide the numerator by the denominator.