Chapter 5 Ratios and Proportions

When all ratios simplify to the same amount, or when a graph is a straight line and goes through the origin.

• Percent Change

• Percent Error

• Proportional Relationship

• Ratio

Match the following

• ratio

• - an equation stating that two ratios are equivalent

• unit rate

• - a rate with a denominator of 1

• rate

• - a comparison of two quantities using division

• complex fraction

• - has a least one fraction in the numerator, denominator, or both

• proportion

• - a ratio of two quantities with different units

Use the table to WRITE a proportion.

Do NOT SOLVE!

What is the RATIO in SIMPLEST FORM?

• 3/5

• 5/3

• 7/4

• 4/7

What is the RATIO in SIMPLEST FORM?

48 worksheets : 12 students

• 4/1

• 1/4

• 3/2

• 2/3

Find the unit rate.

$15 for 4 quarts of milk

• $3.75/1 quart of milk

• $60/1 quart of milk

• $2.75/1 quart of milk

• $32.50/1 quart of milk

Tell whether the ratios form a proportion. (Yes or No)

• Yes

• No

Tell whether the ratios form a proportion. (Yes or No)

• Yes

• No