25petersena
25petersena 25petersena
  • 18-03-2020
  • Mathematics
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the ratio of boys to girls in a class is 4:3. there are 9 girls. how many boys are in the class?

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stephyod11
stephyod11 stephyod11
  • 18-03-2020
for every 3 girls, there are 4 boys. if there are nine girls, that expands to three extra boys, because for every three theres an extra one. so there are 12 boys (9+3.) the final ratio, boys to girls, is 12:9.
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