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6-6 Solving Proportions. What does it mean to be proportional?. Your rates/ratios are equivalent!. What is a proportion?. An equation stating two ratios/rates are proportional Ex:. Checking proportionality:. Method #1: The cross products of any proportion are equal. - PowerPoint PPT Presentation
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6-6 Solving Proportions
What does it mean to be proportional?
Your rates/ratios are equivalent!
An equation stating two ratios/rates are proportionalEx:
What is a proportion?
Checking proportionality:
Method #1: The cross products of any proportion are equal.
Method#2: The “fractions” are equivalent. You can check simplest form, common denominators, unit rates, etc.
Proportional?
Is 4 turns in 64 seconds proportional to 5 turns in 76 seconds?
Method #1
Method #2
Solving Proportions
Use cross products!
Is there another way we could have solved this one?
Solving Proportions
Word Problems
For every 18 people with a sore throat, there are 2 people who actually have strep. If 72 patients have a sore throat, how many probably have strep?
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