Ratios and Ratio Tables

Ratios and Ratio Tables

I can use a RATIO TABLE to organize equivalent ratios to solve problems.

What do you need to know about Ratios?

• They are a comparison of 2 quantities.

• Types: Part to Part or Part to Whole/Whole to Part

• Formats: Fraction form, Word form, Colon form

• ORDER MATTERS!

What are equivalent ratios?

• Equivalent ratios are equal in value.

• You can use multiplication or division to find equivalent ratios.

• Think of them as equivalent fractions.

•  $\frac{5}{7}=\frac{15}{21}$              $\frac{30}{42}=\frac{5}{7}$  

Multiple Choice

What is the ratio of stars to red circles in this image?

• 4 to 11

• 4 to 7

• 7 to 4

• 11 to 4

Multiple Select

Which of the following represents the ratio of lemons to fruit?

• 10:10

• 10:20

• 10 to 20

• 10:10

Multiple Select

Which statement is true about the ratio 7:8?

• It could mean 7 out of 8 students completed a homework assignment.

• It could mean there are 7 girls and 8 boys in a classroom.

• The ratio could also be written as 14:16.

• The ratio could mean that there are 7 students who did their work and 4 who did not.

Multiple Choice

A school sells raffle tickets to raise money. In the table, x represents the number of tickets sold and y represents the money they earn. How much money would they earn if they sold 100 tickets?

• $175

• $225

• $400

• $500

Multiple Choice

The table shows how fast Amy can walk on the treadmill. Based on this table, how many feet could Amy walk in 21 seconds?

• 48 feet

• 60 feet

• 72 feet

• 84 feet

Multiple Choice

The nutrition label on a fruit drink says there are 2 grams of sugar in every 8 fluid ounces of the drink. Which ratio table shows this comparison correctly?

Fill in the Blank

The table shows the number of pages Blaine can read in his book. How many pages can he read in 20 minutes?

Multiple Choice

The table shows the number of pages Blaine can read in his book. How many pages can he read in 42 minutes?

• 14

• 39

• 45

• 126