Ratios & Proportional Relationships
End of Year Project - Allison Dobyns
Use proportional relationships to solve multistep ratio and percent problems. Examples: simple interest, tax, markups and markdowns, gratuities and commissions, fees, percent increase and decrease, percent error.
What is a proportional relationship?
Example: Apples are sold in groups of seven for three dollars. Therefore the ratio would be 7 to 3 (or 7:3).
The ratio of the number of adults to the number of children at a concert is 5 to 3. If there is a total of 120 people at the concert, how many children are there?
The school office orders boxes of pencils and boxes of pens in a ratio of 5 to 2. If 60 boxes of pencils are ordered, how many boxes of pens should be ordered.