500
After the first dance, the SGA wanted 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
Did the SGA succeed in increasing the rate of boys to girls?
What is no, the SGA did not succeed in increasing the rate of participation of the boys at school dances.
dance 1 40/60 = 4/6
dance 2 50/100 - 1/2 or 3/6
or could set proportion and cross multiply