Video and Examples
Using ratios to make decisions. Sample problem here.
After the first dance of the school year, the student council set a goal to increase the rate of participation of boys at school dances. Here is how the first two dances were attended.
 Dance 1 > 40 boys and 60 girls
 Dance 2 > 50 boys and 100 girls
Is the student council successful in increasing the rate of participation of the boys at school dances?
There are three common methods for answering this question:
Method 1: Ratios with common denominators Since , the rate of the boys' participation is declining, so the council has NOT met their goal. 
Method 2: Unit ratios Since , the rate of the boys' participation is declining, so the council has NOT met their goal. 
Method 3: Ratios with common numerators Since , the rate of the boys' participation is declining, so the council has NOT met their goal. 
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SelfCheck
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