Ratios PR1

What is a ratio?

• A number over another number

• Multiplying two fractions

• Two decimals that are multiplied

• A comparison of two numbers

If there are 5 boys and 7 girls, write the ratio of girls to boys.

• 5 to 7
• 7 to 5
• 5 to 12
• 7 to 12

Patrick has 2 black, 3 red, and 5   white toy cars. What is the ratio of red toy cars to all the toy cars? 

• 3:5
• 1:3
• 3:11
• 3:10

Kelly has 10 apps on her iPad. 5 are school apps, 2 are music apps, and 3 are games. What is the ratio of school apps to game apps?

• 5 to 2
• 3 to 5
• 5 to 10
• 5 to 3

Mrs. Shelly paid $3 for 6 muffins and Mrs. Kloske paid $9 for 18 muffins.  

• yes, equivalent
• no, not equivalent

Mr. Keys made $90 in 5 hours.  What is the unit rate?  

• $18 per hour
• $1 in 18 hours
• $90:5h
• 5 to 90

Equivalent means....

• very important
• one
• equal to
• to solve

A ratio can be written as all the ways below EXCEPT which one?

• 3=4
• 3:4
• 3/4
• 3 to 4

What is an equivalent ratio?

• Two or more ratios with the same values
• Two or more ratios that have different values
• Two or more ratios that equal 1
• Two or more ratios that have a denominator of 1

Are the ratios 10:20 and 1:2 equivalent?

• No

• Yes